[ Singles & Dating ] Open Question : Question about clubbing?

Is it easy? I'm a guy who doesn't have any romantic success with women so I never bother to go to a club, but in the near future it pretty much seems like this will be a popular activity amongst my colleagues. I don't want to go and look out of place and awkward there though. How everybody know the dances that are popular? What exactly do you do if you don't want to dance at the moment yet you can't drink? If you go with a group who returns home for the night if any? What if they leave without telling you? How long is the average amount of time to stay at the club?