It's not a 3 day music festival with 18,000 people that goes from day to night bro.. It's a nightclub. Most big nightclubs these days keep all that stuff in the restroom with an attendant anyways.. like cologne/chewing gum/mints/ napkins and sh.t But you don't use that sh.t you come in smelling nice and lookin good.. That stuff is for weirdos and slobs who dont realize that stuff exists until they see it in front of them.
Just be clean, look nice, look sharp, don't wear a suit jacket especially if you're a white male over the age of 30 (gives off provider/free drink vibes) Most importantly pace yourself. It takes a bit of time for the first drink to kick in. I would eat well beforehand otherwise you're not going to feel 100% if you're lacking carbs (especially if you workout alot).. and just pace your drinks.. The point isn't to get drunk.. The point is to get to a level where your confidence is at peak and you feel good and uninhibited. After that, enjoy a water or two before drinking again.. Its so easy to ge tto the point where you're at your peak and then drink more and more and get a little slushed.
Enjoy the music, dance if you dance, engage with as many people as you can in your surroundings while the drinks kick in.. and then after that, pay attention to the girls giving interest and make a move. To warm up go talk to a girl you know you don't like or arent into and just make some casual convo.. This can help be like an ice breaker for you to shake off any nerves.
When dancing with a girl, smile at her and acknowledge her.. dont just act like she doesnt exist and just dance around her like a creep.. and When dancing with a girl, dont touch or get too close, that creep/horny sh.t. Only if and when you established a rapport can you do that stuff. If she breaks touch barrier first, thats when you can too. I break touch barrier first alot but its because i pay attention to alot of cues.
A simple way to not be a weirdo is when a song you like comes n and a chick is enjoying that song too, make eye contact with her and mouth out the lyrics while pointing at her and dancing.. she will usually reciprocate as you both like the same song = common ground. Just keep that vibe going and when a dull song comes on you can talk and offer a drink orask her wht shes drinking, introduce your friends, meet her friends, offer everyone to take shots, etc
Warning humble brag incoming: One day you'll get to a point like myslef where you can just point at girls and gesture with your finger "com ehere" and they'll listen with a big smile on their face.. Anyone can do it, its just confidence and knowing you look good .. if you're ugly, dont bother, work on your looks first.. a haircut, losing 10 lbs of bodyfat , or some facial hair can go a long way. maybe even teeth aligners or w.e