Put it at the payoff of a short setup where a character hesitates, then let No No Wait Wait build the doubt just before it so the agreement hits harder. Follow the yes with Oh My God Wow for the next reaction beat, and save Wrong Answer Game Show for a later failed guess in the same edit.
Über diesen Sound
This is a one-second voice clip of Ian saying OKAY with sudden, emphatic energy, the word stretched into a bright burst of agreement. It feels upbeat, confident and a little over the top, like someone jumping in to approve a plan before anyone can object. That punchy delivery makes a flat yes feel loud and deliberate.