As I've mentioned before, William loves playing with balls. He chases them around until exhausted. He's most recently started throwing tantrums when the ball rolls away from him - throwing himself face down on the ground & just crying because he's tired of chasing after the ball, either that, or he'll throw himself on top of the ball, so it won't roll away, & then proceed to cry (it's a love/hate relationship). I think it's safe to say that he's happiest when someone will play catch with him, so he doesn't have to do as much chasing. If I do say so myself, he throws a pretty good overhand. I also love the fact that we didn't have to teach him to play catch - it's just something he started doing on his own a few months ago. Maybe that's normal, but he's my first kid, so I'm impressed by most everything he does.