Place it just before the reveal in a prank edit, then follow it with a shocked reaction for the target's face and a goofy yell when the joke finally lands for everyone watching.
關於此聲音
This is a short Russian spoken line lasting about fifteen seconds, delivered in a teasing tone as if stopping someone mid-reach. The clipped, unfinished phrasing makes it feel playful and slightly confrontational, like a joke told at exactly the wrong moment for someone else. It works as a quick verbal jab that lands before anyone can answer back.