The Opening Ceremony included many memorable moments -- some somber, others inspiring -- but few were as purely fun as the human pictogram performance. What, do tell, is a "human pictogram performance ...

"Pictograms are usually drawn on a white background," says Hiro-pon, "so we initially thought about performing against screens. But that would mean a lot of people would be unable to see us.

Pictograms are like bar charts, but they use small pictures or icons to show data instead of bars. This pictogram shows the weather conditions experienced in a particular place over a period of time.