We all lie. Sometimes it’s small. Sometimes it’s “I’m on my way” and you’re still in the shower.
But what if someone could actually tell when you’re lying… just by watching you?

There’s a man in South Africa who does exactly that for a living.
He studies human behaviour, facial expressions, and the tiny clues we give away when the truth slips. Joining us on the line now is Marcus Coetzee.
He is one of the only certified human lie detection specialists in South Africa.