I'm pretty sure all of them are in the business, more or less. The few girls who aren't are clearly those who were given $5 to show up, a free drink and the promise of a strip show..., and look bored/cheated as hell except when there is a cue for them to cheer or clap. For the most part, stripping is about entertainment and to be fair, except for the cameraman, most people are not getting to see anything except the back of some guy as he walks from one corner to another. A lot of these girls show up in other sites, like inthevip or etc.