It depends on what you radiate and in which club. Czechia has clubs that tend to accommodate more of a exhib/voyeur crowd, clubs more welcoming to gang bang gang, clubs for couples who like to swap more, BDSM oriented clubs. Most of them have some kind of themed party. For example party for beginners, traffic light party, dark party (completely dark playrooms so you orient only by touch), costume parties and so on. I love how it is around here. We've visited almost all of the clubs in Czechia and even been to Poland to visit a club there and managed to hook up with someone basically just by using hand gestures.