There's something about a child's happiness that is just so evidently sincere. There's something even more sincere about a lil pup's happiness. This, I see whenever my sister walks her dog, Duff. Every time he gets close to the dog park, you can see his anticipation and excitement rise... which is a little strange to me because you can tell all this from just body language. Anyways here he is, enjoying the simplest of joys--running around.