8 Girl Code Rules to Live By

Here's the BLC-Basic Lady Code: Never hate a woman you've never met, never date a friend's ex, never reveal another female's secret, never leave an inebriated friend alone at a bar, never invite a friend's enemy to a party, never dine alone with a friend's boyfriend (unless it's his last meal and he's being shot at dawn).

So much for the elemental stuff; as for those famous "lines" that "shouldn't be crossed" by girlfriends, here's the AWC-Advanced Woman Code:

RELATED: The Real Reason Why Women Gossip

1. Never stay silent when a friend is falling for an asshole.

2. Never favorite a best friend's bon mot. Always retweet it.

3. Never trust a girlfriend who dates a married man.

4. Never refuse to write a recommendation for the offspring of a friend (no matter how big an idiot the kid is).

RELATED: 25 Things Every Woman Should Know

5. Never steal your friend's thunder at a dinner party-when she's on, give her room! Pound the table! Bang your glass with a spoon! Laugh the loudest at her story!

6. Never give your friend's business four stars on Yelp. Always give five.

7. Never agree when a friend says she's flabby, baggy, saggy, lumpy, floppy, veiny, squishy, scrawny, etc., etc. Tell her to shut up. Tell her life is too short. Tell her to eat, drink, and be merry. And finally…

8. Never treat other women disrespectfully: It gives men ideas.

MORE FROM ELLE:
Why You Shouldn't Delete Photos of Your Ex
How to Reduce Your Breast Cancer Risk
The Pros and Cons of Breast Implants
The Most Impressive Rising Stars Under 30