[silverbax88]

I accept that you disagree, but this is the exact case I'm talking about. It does not create interaction with the audience. That is a myth. I breezed through college lectures because I knew how to fool the professor into thinking I was engaged. One of those ways is to ask questions or respond to 'the hand-raise maneuver'. It works because the speaker wants to turn attention over to someone else and I'd happily bail them out.