1. The "Woo!" girl:
She's loud, she's proud, and she's on her eighth tequila shot.
2. The girl in the bathroom who thinks you're sooo pretty:
Drunk girls in bathrooms are the nicest people you'll never see again. But you'll always have that low-quality Snapchat selfie.
3. Some guy named Chad:
You know the guy I'm talking about.
4. The birthday girl:
If you couldn't tell by her sash and tiara, don't worry — she'll be screaming it all night while downing free drinks.
5. The guy with a tab:
This guy will start a tab just to impress a girl or show off to his friends. Spending $312 on drinks won't be the only thing he regrets the next morning.
6. The guy who fucking loves college:
If this guy's life had a soundtrack, it would be Asher Roth's "I Love College," no doubt about it.
7. The honorary bro:

This girl is squad deep with her guy friends and drinks only beer.
8. The person who lost their phone:
They'll ask everyone in the bar to look for their phone until they eventually find it in their back pocket.
10. The person who should have left 30 minutes ago:
This person cannot speak coherently or walk without assistance. Eventually their slightly-less-drunk friend will get them in a cab while they scream, "Seroslllyy I'm tooottlly fynnne."
11. The kid who knows the bouncer:
This kid has the in, which means no waiting in line and no paying cover. Probably named Chad (see #3).
12. The senior who is too cool for you:
They're cooler than you and will make sure you know it. They're actually 21 and don't have to worry about memorizing a fake birthday and zip code. They know exactly what to order, and they drink to forget they're graduating in a matter of months.
14. The mom:
She has tissues, snacks, and Band-Aids, and she's everyone's emergency contact. She'll spend the night wishing she could use child leashes to keep her drunk friends from wandering off.
15. The dynamic duo:
They look the same, talk the same, and order the same drink. They got dressed together, came together, and will be attached at the hip all night — until they leave to get pizza together.