In professional wrestling, a face (babyface) is a heroic, "good guy" or "fan favorite" wrestler, booked (scripted) by the promotion with the aim of being cheered by fans. They are portrayed as heroes relative to the heel wrestlers, who are analogous to villains. Traditionally, face characters wrestle within the rules and avoid cheating while behaving positively towards the referee and the audience. Such characters are also referred to as blue-eyes in British wrestling and técnicos in lucha libre. Not everything a face wrestler does must be heroic: faces need only to be clapped or cheered by the audience to be effective characters. When the magazine Pro Wrestling Illustrated went into circulation in the late 1970s, the magazine referred to face wrestlers as "fan favorites" or "scientific wrestlers", while heels were referred to as simply "rulebreakers".