Personally, I like putting heading at 0°, pitch at -90°, and pushing with Minimum force on the torso or neck. He hops a bit, then comes back down into a sitting position. After a few seconds, he slowly tumbles down the stairs, almost like he fell asleep. Hilarrious.
Full force at heading 0° pitch 0° on a leg results in some nice cartwheeling motions!
//Enjoying this waaayyy too much!
*edit* High score: 75K+