Don't touch or lean against the stage. It will tip over. If there are no volunteers for a part, the leader can be a main character for a warm-up type exercise. Children sit and read a prepared script out loud, with plenty of voice expression, but no movement or props. This type of performance works best with a story with a variety of well defined characters, and a plot too involved for simple acting out.
Costumes are minimal - just a hat or scarf or something to identify the character.
It is possible for one person to read more than one part. Any action that takes place is done symbolically. For example, sleep may be suggested with the reader's head lowered, resting on his chest. The man walking from Jericho to Jerusalem may be presented by walking in place. Characters think out loud.