What is a caller?
Contra dances, like square dances, are done with the help of a "caller". That's where Hannah comes in. The caller teaches each dance before it begins in what's known as a 'walk through'. Once the dancers have done the walk through, the caller will strike up the band, and she/he will continue to prompt the dance until it looks like everyone is flowing along on their own. A caller is also the person who thinks up what dances would be fun for a particular group- they plan the evening, talk to the band, and make sure everyone is happy, in general.