Dog play is very interesting. They play rough, but take turns being top and bottom. Here's our 8-month old Labrador, Sidney, playing with a 9-week old puppy. Even though the pup is so young, he instinctively knows canine body language (play bowing), using his body, and how to do "mouth games" with the older dog. Watch for Sidney to take her turn being on the bottom to keep Frank interested in playing with her.