Place it at the exact moment an unexpected person enters the scene, before any explanation, then follow it with Ceeday Huh and Oh My God Wow for the reaction that follows. That order keeps the question first and lets the exchange build around it.
Sobre este som
This is a very short spoken clip, just over a second long, of Tiririca asking 'Quem é você?' in Portuguese, meaning 'Who are you?' The delivery is blunt and questioning, and it gives the listener a playful, suspicious feeling, like catching someone where they do not belong.