The Secrets of Being a Good Teacher and Speaker

When i'm lecturing, i pay attention to the people who are paying attention. One of the secrets being a good teacher is really being able to watch and judge when all of a sudden you're starting to lose the oi know you. The worst speakers i've ever seen stand at the front of e of the audience with their heads down and mumble at their feet. It's just painful. I mean, ok, ok, so that's very interesting. So tell me what you think about this.