The happy wiggling makes Naoki smile and let exhale a couple bubbles of amusement. He keeps petting and rubbing, splitting his attention between the shark, Kisame, and their surroundings. With both of them petting the shark, he's careful to keep their hands from touching.

After another minute of making friends with the shark and being observed by Kisame, Naoki pulls his hands back and makes the somewhat obvious and reduntant gesture that he needs air. He doesn't push off from the bottom, but carefully puts space between himself and the shark before swimming back to thesurface.