Tyler and I had a nice time decorating the tree together.  I tried to show him how to hang the ornaments, but he didn't quite get the concept.  I would give him a ball and tell him to hang it on the tree somewhere, and he would take it and cram it into an opening in the branches.  waaaay into the opening.  By the time we were done, most of the balls were crammed together in one small region of tree, right in close to the trunk.  I left them there, though, because that's where he put them! :)

For the other ornaments, I decided to take a different approach.  I would ask him "where should we put this one?" and he would point and say "right there!" so I would hang it in that general area.