HOW: Get set up ideally with your forearm and wrist/hand supported on a surface with your palm facing down. Perform the exercise by deviating your wrist to the left and to the right as far as you can, performing radial & ulnar deviation and repeat.
FEEL: This should feel like gentle motion at your wrist, perhaps you may feel a stretch in your wrist and on the sides of your forearm.
COMPENSATION: Try to limit movement to your wrist, not your forearm