Made my low man pat his head an rub his tummy. After an hour and a halfs work, I finally figured out the way the constraints worked. It was best to work from the shoulder, to the elbow, and finally the wrist. Everything was don e using the rotation tool. By using this tool I was able to rotate the joints exactly as I wanted. It took a lot of thinking of how the human body actually worked. The most difficult part was telling in what position the forearm was in, because all movement depends on the position of the forearm.