Put it just after the reveal in an edit, once the other person has caught on, then follow it with the Oh My God Wow sound for a bigger payoff, or start with the Ceeday Huh sound when the realisation is still sinking in.
Über diesen Sound
This is a short French voice line, lasting just over a second, in which a speaker says “C'est cela oui” with a calm, matter-of-fact delivery. It feels like a dry, knowing nod, amused and slightly smug rather than enthusiastic, as if the speaker has just heard something obvious confirmed. That restrained agreement makes it land as a wry response instead of a cheerful yes.