Teaching can definitely be considered a performance in the sense that you have to be in control of yourself and understand how your movements and your communication can influence the class profoundly. I suppose in a way, all of life is a performance when you think that your actions and words make a difference and therefore you need to learn to control them like an actor. All the worlds are staged and we are all actors upon it. To paraphrase Shakespeare: Is that hamlet? But yes, maybe all the world is a stage. Every single situation we find ourselves in is a kind of performance. Like when I went to the hairdressers just before, by the way, I need to go home