Depending on what your interest in theater is, I always recommend working on plays. It's a great way to be introduced to the field, and also a great way to be seen by agents and representation. I'm also a great advocate for studying acting at a drama school or a college.
“There is no medical proof that television causes brain damage - at least from over five feet away. In fact, TV is probably the least physically harmful of all the narcotics known to man.”
“I got arrested once on stage in Memphis for looking too much like Liza Minnelli.”