My English teacher in grade 12 gave us random topics every Monday (snow, summer, football, fun/boring, etc.) and forced us to go in front of the class every Friday for a couple minutes and tell a few very short personal stories/occurences, which are hopefully amusing enough for the rest of the class to pay attention.

Going through a semester of this insanity has the astounding effect of eliminating stage fright. I used to hate the attention I got up there, mostly because I was always a quiet and good-looking person, so people tended to pay attention when I had something to say.