Mark,

Good and clever question! I guess I am assuming because 1. I do know a large number of gays (because I do art fairs for a living) and 2. I think it is somewhat necessary to the survival of their behavior (sorry, I feel weird with the "we" "they" thing, but I'm not, so I don't know of any less polarizing way of expressing myself). To some extent, if they do not have secondary behaviors by which to know each other, how will they find each other?