Who are the people dress in blue in the Olympic figure skating background?

In the Vancouver figure skating competition, there are about a dozen people in a group, all wearing what appear to be blue body suits, sitting right behind the wall. They look like women, but I can't figure out the age. Who are these people? What are they there for?|||They are volunteers. They wear light blue jackets, and are everywhere from downtown to assist with directions, ceremonies to keep people in line, and at every event to keep everything under control.|||Most likely they're volunteers. Usually they have younger women that sit behind a wall and collect mementos, flowers, etc from the ice after the skaters are done with their programs.