HOW: Begin with the non-affected arm on an elevated surface. While hinging over at your hips dangle the affected arm. You will move your arm in circles in this position. If this is irritating your shoulder you can stand upright, the less you hinge over the less stress on your shoulder.
FEEL: You will feel the muscles in your shoulder working without you contracting them. Should feel like a gentle stretch.
COMPENSATION: Don’t actively move your shoulder, make sure to let the motion of your body move your arm.