HOW: Start by lying on your back. Bring your legs together and shift them both to one side. With the leg that was moved to the inside, point your toes down and in. Bring that knee up towards your chest as you move your foot up and out. When the knee becomes straight up from your hip, rotate the lower leg out, internally rotating your hip. Return to the starting position and repeat.
FEEL: You should feel the muscles in your hip working.
COMPENSATION: Keep your back flat. Make sure to point your toes down to start and up at the end.