What makes a great PechaKucha Presentation

Brian Scott Peterson, PechaKucha's Global Dude at PKHQ in Tokyo, has watched literally 1000's of PechaKucha Presentations. He has given quite a few as well and thinks he knows, from lots of experience and a birds-eye view from headquarters what makes a truly great PechaKucha Presentation.
Have your own tip about making PechaKucha Presentations? Leave your best advice in the comments and head over to PechaKucha's "How-To-PK" Community to watch and learn about PechaKucha!
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