Once Puck came back into the room Kurt actually watched him search. If nothing else, it was amusing. Plus Puck usually seemed to get kinda freaked if Kurt looked at him for too long, and annoying him could be extremely fun. "Please, think of some reason I would have to touch anything of yours when it's not because I've gotten fed up with a mess."
But then Puck was hitting his head. And really, that was funny enough to make Kurt laugh. Honestly, he thought it was amazing that the idiot was able to make it through the day without accidentally killing himself, even though he was rather athletically inclined. "And is it just me, or did you just call your daughter gay? Because I think you did. And no, no one has been over here."