Using an EZ Bar

Placing your hands slightly wider than shoulder width apart 

While lowering the EZ bar keep the elbows locked into place for safety   

With a tight and secure grip slowly bring the EZ bar behind your head or toward your head until your wrist slightly pass your elbow and extend back up

If you have no activation with a stationary elbow, slightly being the elbow downward without going below the armpit

Same motion applies