A.Use one hand to give any miotion signal , and place the other hand motionless in front of the hand giving the motion signal 
B.Extend arm with the thumb pointing up , and flex the fingers in and out for as long as the load movement is desired
C.First tap your elbow with one hand , and then proceed to use regular signals
D.First tap the top of your head with your first , and then proceed to use regular signals

A.Extend arm with the palm down and and hold this position rigidly
B.Place both fists in front of the body with the thumbs pointing outward each other
C.Clasp hands in front of you body
D.Extend arm with the thumb pointing up, and flex the finger s in and out for as long as the load movement is desired