Place it immediately after the embarrassing reveal or failed attempt, then follow it with Nelson's Ha-Ha! for a second reaction, or cut to Oh My God Wow when the moment turns from funny to unbelievable.
關於此聲音
This is a short clip, about two and a half seconds long, of a person laughing with a repeated 'hahahah' that comes in quick, separate bursts. It feels silly, unrestrained and a little mischievous, like someone who has just heard something they cannot keep a straight face about, and it works as an instant, over-the-top reaction to something absurd.