Explanation:

1. Place your feet shoulder-width apart;
2. Position your feet shoulder-width apart and stand on tiptoes;
3. Step with your left foot as far behind as possible past your right foot;
4. Then step out as far as you can with your right foot;
5. Step with your left foot as far as possible ahead of your right foot;
6. Step out again with your right foot as far as possible;
7. Repeat this movement at a fast pace.