Place your left foot on the first step of a stairway and your hand on the wall or banister for balance. Slowly step up onto your left foot so you are standing tall on the step with your left foot, and your right foot's off the ground. Hold for a second, and then step back down off the step onto your right foot, so there's no weight on your left foot. Repeat up to 6 times. If you need to, take a short rest between steps. Reverse legs, and repeat up to 6 times.