Place it just after the sneaky entrance in your edit, then follow it with another reaction sound for the reveal. Keep it as the first beat before the payoff, and pair it with a goofy reaction when the group finally notices them.
About this sound
This 1.2-second clip is a brief, cheeky meme sound built around a burst of 'HA HA' laughter under the name Akira Vai Aganhadinho. It lands as a quick, teasing laugh that feels light, silly and a little mischievous, giving a listener an instant grin without needing any setup or explanation.