To my pups, yoga is a very fun game. The rules are as follows:

1. Wait til the human gets balanced in some complicated pose
2. Find a way to make her fall out of the pose. Depending on the pose, some favorite ways to do this are licking ticklish feet, leaning into me, putting a cold wet nose in my unsuspecting ear, etc.
3. Stand over the human after she falls down, smile, back off, then repeat.