"It is a group story told with rules used to resolve differences. Say we should decide to  tell a story between the two of usabout some Muggles. Each of us would play a character we would invent and wewould determine their capabilities using a set of rules. Then if we couldn't resolve a conflict wewould use the rules to decide."<br/>"It's usually played like a board game with people sitting around a table and taking turns."