HOW: Begin in a standing position. Shift your weight to one leg. Take the other foot and hook it around the back of the standing leg. Cross your arms across your chest, or grab onto a stick if needed. From here, drive the bent knee out and in a circular motion as much as your hip allows. Do this all while keeping your upper body still for the prescribed amount of reps.
FEEL: You should feel your hip muscles working and stretching as you rotate to each side.
COMPENSATION: Only allow movement at the hips, keep your upper body still.