Speaking up
As my friend Jerry observes in this post, we humans love to talk, to hear the sound of our own voice, sometimes even though what we are saying is just meaningless babble. I plead guilty. Can't help it. It's just the way I am. In fact, when I was in grade school they even had classes in elocution, which I doubt you would find in many modern curricula. And in a way, I think that's sad, because I believe that its absence probably contributes to that almost-universal fear many people have about speaking in public.