Modesty and demureness is a mode of dress and deportment intended to avoid encouraging sexual attraction in others; actual standards vary widely. In this use, it can be considered inappropriate or immodest to reveal certain parts of the body. A modest person would behave so as to avoid encouraging the sexual attention of others. In some societies, modesty may involve women covering their bodies completely and not talking to men who are not immediate family members; in others, a fairly revealing but one-piece bathing costume is considered modest when other women wear bikinis. In some countries, exposure of the body in breach of community standards of modesty is also considered to be public indecency, and public nudity is generally illegal in most of the world and regarded as indecent exposure. However, nudity is at times tolerated in some societies; for example, during a world naked bike ride, while a lone man attempting to walk naked from south to north Britain was repeatedly imprisoned.