Place it right after the highlight in your edit, once the smooth action is clear, then follow it with clapping to let the moment breathe and celebrate the result, or open with It Was At This Moment He Knew before the reveal to build the payoff.
Über diesen Sound
This is a very short spoken clip built around the two-word phrase 'like butter,' delivered in a calm, matter-of-fact voice over about a second and a half. It gives a smooth, quietly confident feeling, like a job done without any friction, and works as a dry little compliment for anything effortless.