A best friend loves you the most. A best friend cries with you when you get hurt. A best friend cuddles you when they know you need to be comforted. A best friend doesn’t have to ask what is wrong, they already know. A best friend holds your hand when you have to take a leap. A best friend isn't embarrassed by the things you do. A best friend tells the whole world how special you are. A best friend is all you really need!
girl - that's my best friend, she's awesome, I just love her!
2 Girl best friends: They do all the girly things together, no one says anything.
2 Boy best friends: They do all the boy stuff together, no one says anything.
1 Boy + 1 Girl best friends: They do boy and girl stuff, People says lots of stuff
Gun Man: I’m going to kill your best friend miss
Stu: No take me instead!
Your real, true best friend is your comfort zone.
In some cases, the two or more part doesn't apply. It is quite possible to be your own best friend.
You have ''in'' jokes that no one else can get, but you still find as funny as ever =) You don't have to pretend around them, they like you for who you are.