Research on strippers has examined erotic dancing as a type of sex work in larger sociocultural context, gender, sex roles, and perceived appropriateness of behavior. However, when an occupation is considered illegal, immoral, or improper, social acceptance is not granted. References to strippers as characters or plot devices are too numerous to name. Other activities Aside from advertising for striptease services outside the club, an unknown percentage of strippers also work in other aspects of the sex industry. April Learn how and when to remove this template message The image of strippers as known today evolved through the late s and s in the U. Written agreements are atypical in this type of transaction unless a formal, registered business is involved. Aside from advertising for striptease services outside the club, an unknown percentage of strippers also work in other aspects of the sex industry. Because of the non-physical motivations ascribed to female intimacy, dancers select women to approach who are smiling and sitting comfortably with open body language such as uncrossed arms, actively participating with the crowd, laughing and engaging with fellow customers, and applauding for dancers at the main stage also increase the likelihood they will be approached. Tipping during a stage performance is prohibited by some clubs due to restrictions in local ordinance or past incidents on the premises. These activities are not mutually exclusive , meaning that a stripper who models on the side would be a stripper and a model. There are many entertainment businesses that have strippers contracted for private performances. Touching of strippers is not permitted in many localities. Depending on the quality of the club, the room, which is away from the hustle and bustle of the main club, is well decorated and usually has its own bar.