Women are sharing the unspoken rules of 'Girl Code.'

If you're a woman or have ever been a woman, you probably know about "Girl Code." It's an unspoken list of rules that people of the female persuasion tend to follow as a way to support one another in a patriarchal world. Most of these rules are unspoken. There's no shared google doc that every woman has access to—although maybe there should be! But most of us know these rules and abide by them—and if we don't, we are kicked out of the club and don't get any free hair ties!

Someone asked women of Reddit to share the unspoken rules of "Girl Code." Here are 21 important rules to abide by if your chromosomes are double-X:

1.) From TheRedMaiden:

If there's a red spot on her pants you tell her discreetly and immediately.

2.) From garden-girl:

Lipstick on their teeth, eyeliner in the corner of their eye, skirt tucked into pantyhose. You let them know without making a huge deal about it.