 Socially, it is considered good etiquette (particularly on a crowded floor) to use a fixed slot, in order to allow dancing without incident.Having danced the slot repeatedly, the couple "has a claim" on the area, and other couples usually cooperate and establish their own slot parallel with the dancers.If the dance floor is not crowded and the couple is afforded more space, such as during a competitive event, the dancers may move the slot around the floor more liberally.