Dude, I really dont know if this is right or immoral, if works with everybody or just me.
What I do in loud parties (normally I prefer another kind os places to pickup...) is keep in the borders, away from the loud music, and Im habituated to approach quiet women, they're even waiting for someone to put them out of their own thoughts, and just have fun, that kind of girl are the most useful to one night stand for two reasons:
1. They're propably unhappy, and will easily try to find on sex a escape route to their own pain.
2. You bring value and a good vibe for her more easier. If you approach a full set of people having fun, you need to do more efforts to win the set, offering value and everything all you learned.
There always unhappy ladies in loud parties, they're the easy victims, just waiting for some wonderful guy to take them out of their personal hell (maybe YOU)
WOW, this is my evil post ever
Hope you dont try this at home! ahhahahha
Fu$$