Place it right after the strange action appears, then follow it with Oh My God Wow for shock and Eww Brother Eww for disgust. For a longer reaction sequence, start with Ceeday Huh before it, so the confusion builds before the call-out lands.
Über diesen Sound
This 11-second reaction clip puts the word weirdo front and centre, delivered as a direct call-out aimed at someone acting strangely. It feels teasing and awkward, with a judgemental edge that makes the target feel singled out. That mocking, light-hearted sting makes it a quick response to odd behaviour rather than a friendly greeting.