I agree with Gretchen, hide and seek is a good fun game. For younger puppies we played using 2 people . One person would hold the puppy back and the other person would go hide with a toy or treat and yell "come" or "here". It's a good game to start learning recall.
I also liked playing "which hand"? I would hide a treat in one hand and have them try and guess which hand.
When Bear was a little older we would play focus games. I would hold a treat in my open hand in front of him and he would have to look at me and focus before he could have the treat. Happy training!
Bear GSD 10/16/11
Elsa GSD 12/23/03 - 11/10/11