Place this clip right after the reveal in your edit, then follow it with an oh my god wow for a second reaction beat. For a confused turn instead, lead in with a huh before it, and close the sequence with a damn to underline the result.
À propos de ce son
This clip is a single human voice stretching out the word 'Gee' for about four and a half seconds, holding the surprise in one long, emphatic note. It feels playfully stunned and a little incredulous, the kind of over-the-top reaction that turns a small shock into a joke all by itself for listeners.