Place it just before the reveal in a quick edit, then follow it with the Game Show Correct Answer sound and finish with a Yeah Reaction sound for extra approval.
About this sound
This short clip runs for just under six seconds and centres on the smart boy idea in its title, delivered as a compact burst that is easy to recognise and replay. It feels playful and lightly teasing, like a quick nod to someone who has just shown they know what they are doing, and it works best as a brief reaction rather than a longer piece of audio.