Put it at the end of a reveal sequence, after Enemy Spotted builds the suspicion and before Okay Let's Go starts the next round, so the yes closes the joke instead of opening it.
Über diesen Sound
This under-a-second clip is a single stretched-out yes shouted in a triumphant, cartoonish voice, as if someone has just finished a secret task exactly as told. It feels gleeful and a little smug, the sound of getting away with something and wanting everyone to know. It comes from an imposter character in a social deduction game.