There is no one closer than you and your best friend — literally no one. You all know each other inside and out. You hang out 24/7, and after all this time you can even communicate without using words. Here are the five facial expressions that only you and your best friend understand as told by "Gossip Girl."

1. The "I really need you to do me a favor ... just this once" face

She is your best friend and has saved your butt a million times. Now she really needs you to return the favor. She bats those eyelashes so much that you just can't resist to help a girl out.

2. The "Oh sh*t, I can't believe you just said that to her/him" face

She really wants to laugh at how you just roasted someone but she has to stay composed. The least she can do is give you a small smirk of satisfaction. You are making her oh so proud!

3. The "I am going to kill you if you don't shut up" face

Sometimes your bestie knows a little too much and they cannot keep their mouth shut. She is literally going to hurt you if you don't stop yourself from telling that hottie that she one time threw up all over her crush.

4. The "You shouldn't wear that outfit tonight" face

Best friends are honest and we love that about them. She is never going to let you leave the room looking anything less than a 10. The look of disapproval is more than enough to get you to reevaluate your choices.

5. The "Please come save me, this guy is a total creep" face

It's a girl's night out and all your girls are dancing the night away while you get your ear talked off by a total creep. Your bestie can sense your panic by your horrified facial expression and always comes to save the day.

Shoutout to all the best friends out there who have special facial expressions that only the two of you understand. They sure do come in handy sometimes!