Lighting sets the mood and time, separates the actor or scene on stage and helps the audience see things in the dark. Learn to use lighting on stage. Just because your feet appear to be in the light on stage, it doesn’t mean that your head or face is. If the light seem to be right in your eyes, nearly blinding you, you are probably right in the middle of it.
Pay attention to your shadow. It will give you a hint about what is happening with your light. Shadows, in fact, are the biggest problem we deal with on our stage… actually more offstage than on.
The lights that illuminate the backdrops are usually placed about 6 feet away from the backdrop walls, tempting actors to walk between the walls and the lights… consequently creating 30’ tall shadows that immediately grab the attention of the audience. Also, be cautious of lighting cables on the ground.