1. They look at you and know exactly what you are thinking by your facial expression
2. They know your drunk when you pull out your signature dance move
3. They know your phone passcode better than you. Scratch that – they have their fingerprint programmed in your phone
4. They know every person you stalk on Facebook, how often and why
5. They know your alcohol tolerance to the T and continuously save your from the shot that could turn your night for the worst
6. They know how well your diet is going
7. They finish your sentences
8. They know everything about your relationship because they are the co author to all of your text messages
9. They know your sense of humor and role on the floor laughing at jokes you make that others don’t understand.
10. They know the good, bad and ugly but they love you no matter what