I would teach him how to throw a baseball. Because it's just painful to watch.
And in return, he could help me with my jump shot, which is equally painful to watch.
If I were his advisor I might suggest he begin a tradition of throwing out the first basketball. Improve the ol' image.
Pop quiz for the national pastime, no Googling -- who was the first POTUS to throw out a first pitch at a baseball game?
William Howard Taft, April 19, 1912