Stretch arms out to the side, arms spread, upside down on the floor '' at the end of the fingers, hand pointer along perpendicular to ground, moving the arm up and down.
Stretch your arms out to the side with arms outstretched. Parallel to the floor face down fingers pointing down perpendicular to the ground. Then move the arm up and down
Stretch your arms out sideways by the arms parallel to the ground. The upside down hands fingertips pointing down, perpendicular to the ground, then move your arm up and down.