The smart thing to do would probably be to leave the quietest teammate time to himself. But hey, he wandered out where people can see him. Besides, he looks pretty down, and Clint can't just leave him to that without checking to see if he needs something. They're friends, right? Sort of.

He lets out a sharp whistle to alert Bruce to his presence, turning halfway around to get a better look at him. "Something on your mind, Doc?"