The most persuasive language in a piece of marketing copy is rarely invented by the writer — it's language lifted directly from how real customers describe their own problem and the value they got from a solution. Getting that language requires actually talking to customers directly, in a structured way, rather than relying on internal assumptions about how they think and speak.
Why Direct Interviews Beat Internal Assumptions
A team deeply familiar with its own product tends to describe it using internal language and framing that real customers rarely use themselves — customers describe problems and solutions in their own words, shaped by their own experience, which is often more specific, more emotionally resonant, and more persuasive than anything a marketing team would independently write. Genuine interviews are how you capture that authentic language instead of guessing at it.
Conducting productive customer interviews should involve:
- Preparing questions in advance while staying flexible enough to follow what the interviewee actually says
- Recording the conversation so you can revisit exact phrasing later, not just general impressions
- Setting clear expectations upfront — the purpose, time commitment, and that it isn't a sales pitch
- Scheduling more interviews than you think you need, since some will inevitably fall through or run short
A Simple Framework
- Prepare a short list of open-ended questions, but let the conversation go where it naturally leads
- Set up recording or transcription so you can review exact language afterward
- Set clear expectations with the interviewee about time, purpose, and confidentiality upfront
- Schedule meaningfully more interviews than your target number, accounting for cancellations
> Tip: The single most valuable output of a customer interview is often not the big-picture insight — it's a specific turn of phrase the customer used to describe their problem or the solution's value, exactly as they said it. Capture those phrases verbatim; they tend to make the strongest headlines and hooks.
Example
Before: Marketing copy written entirely from internal assumptions about customer pain points, using language that sounds accurate to the team but doesn't quite match how real customers actually describe their experience.
After: The same copy rewritten using specific phrases pulled directly from customer interviews, resonating far more because it uses the customer's own authentic language rather than an internal approximation of it.
Common Mistakes
- Writing marketing copy purely from internal assumptions instead of genuine customer research
- Failing to record interviews, losing exact phrasing that would have made strong copy material
- Rushing interviews without setting clear expectations, leading to guarded or generic answers
- Scheduling too few interviews and ending up with an unreliable, too-small sample
Once you've gathered genuine customer language, organizing and referencing it while drafting keeps your copy grounded in what was actually said. SeoWolf's Notepad is a simple place to keep those verbatim phrases handy while writing.
The best line in your next piece of copy is probably sitting in a customer's own words, waiting for you to actually ask them the right question and write it down exactly as they said it.