The right (or dominant) hand is in a loose "C" handshape. You bring the
right hand down onto the left hand, then you lift up the right hand
rotate it and bring it down again on the left hand.
Twist your right hand as if cutting out cookies from cookie dough.
Student: Does cookie use a rotating letter C in the palm
of the the opposite hand?
Dr Vicars: You could use the letter "c" but I use a more relaxed
"claw type" hand.