Shading is showing the objects' roundness or shape; shade is the blocking of a light source; and shadow is the variation between black and white with the darkest part at the center and the 'shadow' fades at the edges.
Answer
You’re right hand, when giving a firm handshake .
explanation
You always use you’re right hand just as the other person does to shake you’re hand .
Answer:
Judy Garland; Fred Astaire
