Put it between the setup shot and the reveal as the sole transition in that section. If the reveal lands badly, follow it later with awkward crickets for the reaction beat, or precede a wild reveal with a shocking sound effect so the jump carries the payoff.
About this sound
A short 2.3-second voice clip delivering the line 'A few moments later' in a flat, narrator-style delivery. It gives a dry, expectant feeling, like a pause has just ended and the result is about to be revealed, which makes the gap itself feel funny and loaded with anticipation before anything else happens on screen.