HOW: In a standing position, shift your weight in circles. Rotate by placing most of your body weight from the leftt, to your forefoot/toes, to the right, back towards you heal, and repeat. You can then also go the opposite direction. Start with small circles and increase the size of the circle you go through as you feel comfortable.
FEEL: You will feel all the small muscles of your foot work during this exercise.
COMPENSATION: Make sure the foot stays flat on the floor the entire time, don't allow certain parts of your foot to lose contact as you weight shift.