Place it right at Kamil's entrance in the timeline, then follow it with a funny ha ha laugh for the group's response, or put a yeah reaction underneath a follow-up caption to close the beat before the next scene starts.
Bu Ses Hakkında
This is a half-second voice clip of a single name being called out: Kamil, said clearly in one short burst. It feels abrupt and funny, like shouting across a room to get one specific person's attention, and the suddenness makes it land as a playful interruption rather than a normal greeting.