Stand on your left leg and lift your right leg a few inches off the ground, bending at the knee. Now turn your knee out to the side. Bring right heel towards the ceiling and bring leg across the front of your body so that your right knee is past your left leg. Lower right leg towards the floor and lift it up as high as you can, keeping heel up. That’s one rep. Repeat this movement 15 times on your right side, then 15 times on your left.