On the fly with powerpoint

This past weekend John was quizzing the audience about their Thanksgiving thoughts. He wanted a live update as people shouted out their answers. So we froze the slide show and typed in the answers and then re posted it on the screen, it was ok but (as Jason pointed out) seemed a little staged. Turns out there is a better way to do this. While the show is running you can type in (or add images) on the fly. Just leave the presenter view running and return to the slide, start editing and the changes you make will appear on the screen as you make them.
Keith