Place it immediately after the reveal of the strange behaviour, letting the reaction carry the cut before the next clip begins. Follow it with the Bruh sound for a dry second beat, then use the Oh My God Bro Oh Hell Nah sound when the chaos escalates further.
About this sound
This is a loud spoken reaction lasting about 17 seconds, built around one bewildered question about someone else's strange behaviour. The voice sounds incredulous and exaggerated, turning simple confusion into a joke in itself. It feels funny, mocking and instantly quotable, like catching a friend doing something completely inexplicable and calling it out on the spot.