Ask a few of the girls who work at that club if they like it and see what they say. You will get a really good idea if a lot of girls have been working there for a long time and rave about it.
When you start working at the club, keep yourself quiet and out of the way. Do not be the life of the club or start trying to be every girls' friend. This will make the girls suspicious of you and will make them doubt your motives. Just watch the flow of the way the club works, so you can blend in and learn your trade.You will make friends, but due to the nature of the work, it takes time. If you think about it, you are competing for money with every single girl in the club.
Be careful what you tell the girls when you start working. Although most of the girls in a club are absolutely great and probably like you, there are some shady characters which you would not normally bump into in your real life. So although you shouldn't lie to these girls, just be vague with details you give about your life until you know them a little better.