[SerraAva]

While I do agree with the above statements, I think he should try to make the most of it as its a learning experience for him as much as the actors, it is still high school. If he is "Going over the top", it would be the director's job to say its too much. Possibly the director doesn't tell you and when watching the show, you see something that is too busy or too much. Or maybe someone after the show says they watched the lighting more then the actors. That would be when you can look back and think where you went over the top. This is how I learned when something is too much and how to control myself. Learn it early so you can better yourself.

Also, sometimes lighting is meant to be distracting or attention grabbing to hide something else going on or highlight a key part of the show. This is again another learning experience. All of these things also depend on the show, the cast, set, and the over all concept for the show.