This is a beginners warm up for doing partner yoga. More advanced practice requires a spot and some advanced instruction.
Vinyasa Yoga is one of the most preferred forms of Yoga. If you're looking for a good Yoga workout, I suggest you give Vinyasa Yoga a try.
Partner yoga is a slightly advanced form of yoga where you workout with your partner. This requires immensely intense levels of patience and perseverance. Watch this video as Dashama demonstrates some warm up poses for partner yoga with her friend. A word of caution: please try these poses only if you are comfortable and strong with yoga poses.