There are three steps, and anyone can do it. Start by finding three balls.
Bean bags are ideal, but tennis balls are good.
I recommend that you practice over a bed or couch. It will save you a lot of bending over. F irst we should talk about posture. When you are doing any of the exercises listed below, your upper arms should be at your side while your lower arms should be horizontal with the floor. Just imagine you are holding a tray.