'All? You must be joking. I'm the one in the spotlight!'
Yes, all. It sounds odd, but it's the finest way I know to achieve everything you could want as a presenter. The audience focuses on the message, your personal authority rises, and you feel confident being there. (If you want more than that, I salute your ambition.) Let me spell out what I mean by all.
No, you won’t need a box of tissues. We’re talking about one particular emotion that boosts your credibility. It's this particular desire: I want you to understand what I'm talking about. You have to want that, and you have to show the audience that you want it.