Toe Taps Left Right Right Left on Hands and Toes

Double toe taps. Example is left hand down, right had goes back to left foot then right foot before coming back and then swap arms and go again.
Toe Taps Opposite on Hands and Toes (Under)

On Hands and toes. Use hand to touch the toes on the opposite foot. Keep a rhythm, and maintain your balance.
Toe Taps on Hands and Heels (Over)

On hands and heels. Use hand to touch the toes on the opposite foot. Keep a rhythm, and maintain your balance.