1. When you always notice the little things about each other.
2. When you have to share some very essential info with the squad.
3. When you try to communicate subtly to each other.
4. When you make each other go to great lengths for the perfect snap.
5. And when it's every woman on deck for that all important text.
6. When you have a sleepover and you all realise how weird and disgusting you all are.
7. When one of you needs cheering up.
8. Or just some straight up advice.
9. When your enemy becomes the squad's enemy.
10. When you find other uses for cuddling.
11. And when you're so close you can be as gross and open as you want.
12. Like, really gross.
13. When you're just having a night out with the girls and some man tries to get in on the action.
14. And when a drunken girl does the same but it's totally fine.
Drunken girls in the bathroom are the best friends you could ever make.