You know you’re supposed to “talk to customers” before you build anything. But the moment you actually try, one of two things usually happens: the conversation drifts into a pitch, or the person nods politely and says “yeah, I’d probably use that” — which tells you almost nothing. Neither outcome helps you decide whether your side hustle idea is worth building.
This guide gives you a repeatable protocol for interviewing five potential customers about a problem, not a product. It includes outreach wording, a consent-based opener, a bank of open questions, a list of question patterns to avoid, a note-taking structure, and privacy guidance for handling what people tell you. One worked example is included purely to illustrate the format — it is explicitly fictional, not a record of a real conversation the publication conducted.
Why Talking to Five People Beats Guessing
Structured conversations with potential customers are a standard, recognized part of researching a market before you invest time or money. The Small Business Administration’s guidance on market research and competitive analysis frames this kind of research as a core early step for anyone planning a business, alongside understanding your competitive landscape and industry. You don’t need a research budget or a survey platform — five honest, well-run conversations can surface more useful signal than a poll of fifty people who never faced the problem.
The catch is that most first-time interviews go sideways. The interviewer gets nervous, starts explaining the idea too early, and the conversation turns into a soft pitch. The fix isn’t charisma — it’s structure. That’s what the rest of this guide provides.
Step 1: Recruitment Wording That Doesn’t Feel Like a Sales Ask
The way you ask for the conversation sets the tone for the entire interview. Your outreach should make three things clear immediately: you’re researching a problem, not selling anything; the time ask is small and specific; and there’s no obligation attached.
Reaching Out to Strangers (Online Communities, Cold DMs)
“Hi [name] — I’m researching how people currently handle [specific problem, e.g. ‘scheduling recurring client payments’]. I’m not selling anything, just trying to understand what people actually do today. Would you have 15 minutes this week for a quick call or a few messages back and forth? Happy to work around your schedule.”
Reaching Out to Acquaintances
“Hey [name], random question — do you ever deal with [problem]? I’m doing some early research on this (no product, no pitch) and would love to hear how you handle it if you have 15 minutes sometime this week. Totally fine to say no!”
Reaching Out to Warm Contacts
“I’m exploring an idea and want to make sure I actually understand the problem before I build anything. Would you be open to a quick 15-minute chat about how you currently deal with [problem]? This isn’t a sales call — I just want to learn from your experience.”
Notice the pattern: name the problem area specifically, state plainly that there’s no pitch coming, and commit to a short, bounded time window. Vague asks (“can I pick your brain sometime?”) get ignored or produce rambling, unfocused conversations.
Step 2: The Interview Opener — Purpose, No-Pitch Promise, and Consent
Before you ask a single research question, open the conversation the same way every time. This protects the person you’re talking to and protects the quality of your data.
“Thanks so much for making time. Just to set expectations: I’m researching how people deal with [problem area] — I’m not going to pitch you anything today, and there’s nothing to buy. I’d like to ask about your experience and take some notes as we talk so I don’t forget anything. [If recording: I’d also like to record this so I can focus on the conversation instead of typing — is that okay with you?] Everything you share stays between us, and I’m happy to keep anything you say anonymous if you’d rather not be identified. Sound good?”
Wait for a clear yes before you continue, and if someone hesitates on recording, default to notes only. This is a small moment, but it’s the one that makes the rest of the interview ethical and transparent rather than something done to someone.
Step 3: A Bank of Open, Non-Leading Questions
Organize your questions around four areas: the problem itself, current behavior, past attempts to solve it, and — only at the very end, and only if it feels natural — a plain description (not a pitch) of your idea.
Problem
- “Walk me through the last time you ran into [problem]. What happened?”
- “What’s the most frustrating part of that, if any?”
- “How often does this come up for you?”
Current Behavior
- “What do you currently do when this happens?”
- “What tools, people or workarounds do you use today?”
- “How well does that actually work for you?”
Past Attempts to Solve It
- “Have you ever tried to fix this a different way? What did you try?”
- “What made you stop using it, if you stopped?”
- “Have you looked for a better option? What did you find, if anything?”
Reaction to the Idea (Description, Not Pitch)
- “I’m exploring an idea where [plain, neutral description of the concept]. What’s your honest first reaction?”
- “Does that match a problem you actually have, or not really?”
- “What would be missing or wrong about an approach like that, in your experience?”
Notice that even the “reaction” section asks the person to react to a description, not to commit to a hypothetical purchase. That distinction matters more than it seems.
Step 4: Leading Questions to Avoid — and Why They Bias Your Data
Some question patterns feel natural but quietly supply the answer you want to hear. Cut these entirely.
“Wouldn’t you love a tool that…?”
This phrasing bakes agreement into the question. Almost nobody says “no, I wouldn’t love that” to a friendly interviewer, so the answer tells you about politeness, not demand.
“Would you buy this if it existed?”
Hypothetical purchase-intent questions ask people to predict their own future behavior under imagined conditions — price, timing, and effort are all unspecified, so the answer is speculation dressed up as data.
“Don’t you think X is a big problem?”
This supplies the desired answer inside the question itself. A neutral version (“Is X something you deal with?”) lets the person tell you whether it’s a problem at all, rather than confirming your framing.
“How much would you pay for something like this?”
Without a real product, price, or moment of decision in front of them, people either guess wildly or name a number to be agreeable. Treat any number from this question as noise, not a pricing input.
“On a scale of 1–10, how excited are you about this?”
Excitement scores measure social rapport in the room more than intent to act. They’re easy to collect and easy to misread as validation.
Step 5: A Simple Note-Taking and Synthesis Grid
Use the same structure for all five interviews so you can compare them side by side afterward instead of relying on memory or vibes.
For each interview, capture:
- Verbatim quotes — exact wording on the problem, current workaround, and reaction to your description.
- Observed emotion — frustration, resignation, indifference, enthusiasm — noted in your own words, not the person’s.
- Current workaround — what they actually do today, even if it’s “nothing.”
- Follow-up questions — anything you wish you’d asked, to raise in interview two, three, four or five.
After all five, lay the notes side by side in a simple grid — one row per interview, one column per category above — and look for patterns: Did three or more people describe the same frustration unprompted? Did anyone volunteer a workaround you hadn’t considered? Did reactions to your description cluster around a specific objection? Patterns across independent conversations are far more meaningful than enthusiasm from any single interview.
Fictional Worked Example — For Illustration Only
The following is an invented example built to show the note-taking format. It is not a real interview conducted by this publication, and “Maria” is a hypothetical persona created for teaching purposes only.
Persona: Maria, hypothetical freelance graphic designer
Problem area: Tracking unpaid invoices across multiple clients
- Verbatim quote: “Honestly I just have a spreadsheet and I forget to check it half the time.”
- Observed emotion: Mild resignation, some embarrassment about the workaround.
- Current workaround: Manual spreadsheet, occasional calendar reminders she admits she ignores.
- Reaction to description: “That would be useful if it didn’t need me to enter everything by hand — that’s basically what I’m avoiding now.”
- Follow-up questions for next interview: Ask specifically how much time is lost per month to chasing unpaid invoices, and whether accounting software is already in use.
Notice that the fictional reaction includes a real objection, not blanket enthusiasm — that’s what a useful (if invented, here) data point looks like.
Step 6: Handling What People Tell You Responsibly
Even an informal round of interviews involves collecting personal information — names, contact details, opinions attributed to a real person. The Federal Trade Commission maintains business guidance on privacy and data security that applies to any business handling consumer information, including informal research conversations. A few practical habits keep you on the right side of that guidance:
- Collect only what you need. You rarely need a full name, employer, or contact history to synthesize a pattern — a first name or initial is often enough.
- Store notes securely. Keep interview notes in a password-protected document or account rather than a shared, unsecured file.
- Don’t share identifiable details. If you discuss findings publicly or with a co-founder, strip names and identifying specifics unless you have explicit permission to share them.
- Offer to anonymize. If a participant seems hesitant, offer upfront to refer to them only by role (“a freelance designer”) rather than name in any notes or write-ups.
None of this requires legal expertise — it just requires treating five conversations with the same care you’d want if you were the one being interviewed.
Turning Five Interviews Into a Decision
Five well-run conversations will leave you with a stack of notes, some contradictory reactions, and a nagging question: does this actually add up to “build it” or “don’t”? That’s the harder judgment call, and it’s easy to talk yourself into whichever answer you already wanted.
Rather than eyeballing it, run your five completed interview grids through the My Side Hustle Scorecard. It’s built to take the same problem, behavior and reaction notes you just collected and turn them into a structured read on customer fit — so your next step is based on what five real conversations actually showed you, not on how good the last conversation happened to feel.
If you’re still shaping the idea itself before you get to interviews, it may help to revisit how you define your first customer without relying on a generic buyer persona, or look at the broader question of how to validate a side hustle idea before you spend money. Both pair naturally with the interview protocol above. For more structured guidance like this, browse the full Blueprint Guides collection.
