Kisame is taking the location as a way to get some training in, using chakra to fuel jumps that most people could never hope to make, and then to stick the landing without a skid. In this case he manages to land on the side of Bolin's balloon just in time to hear the plea. So he peers down from where he's crouched on the side with two feet and a hand braced against the surface (poor landing; he can do better. He will do better!).

"I know being in an area with a dearth of your element is a handicap, but if you let it control you like that, where are you going to go in your life, kid?"

Look, he's being helpful! Sort of.