The Psychology tricks that make the Interview format work

Think about the last video that really caught your attention. Most likely no one was talking to you. Two people were talking to each other, and you happened to be watching. That's the format: a question and a stranger with an opinion.

It has been on social media for years and is barely being used by South African corporate brands. I work in influencer marketing, so I see daily what's holding attention and what's not. Here are the two psychology traits that I believe explain it.

You weren't meant to hear this…

There's a study from the 1960s that still holds up. Researchers gave two groups the same persuasive message. One group was spoken to directly. The other group overheard it as a private conversation between two strangers. Surprisingly, the group that overheard was more likely to change their mind.

The reason is simple. We defend ourselves against being sold to. The second you recognise something as an ad, you put up a wall and discount the message long before it's able to hit.

The interview format scales over that wall. Nobody is talking to you. Two people are talking to each other, and you're just there. Your guard never goes up. I like to call it the eavesdropping principle, and it's why a street interview beats the exact same claim read out in a 30-second ad.

The question isn't for them, it's for you.

The format always starts with a question. Two seconds later, you've already subconsciously answered it. You hear "what's the one thing you refuse to buy the cheap version of?" and you've already answered it in your head before they open their mouth.

Psychologists have known this for decades. Information you weigh against your own life sticks. Information fed to you doesn't.

Then you stay, because you want to know if the stranger agrees with you. You stop watching them and start seeing yourself in their position. You aren't sitting through an ad. You're checking your own answer.

Why this actually matters

This format has always resonated with South Africans. Talk radio call-ins, braai arguments, and so on. 29 million of us are on social, and we're NOT a quiet audience.

The average corporate feed has product shots and campaign lines, all spoken directly at you. Our wall is set sky high and our thumbs are already moving. That's the gap.

It's the thinking behind TribeTalk, the unscripted street interview format we run at Tribeez Social. The format isn't new to social media, but it's new to the SA corporate space, and that's exactly why it's performing for our existing clients.

Source: DataReportal, Digital 2026: South Africa.