1. When you guys first started hanging out.
2. Now.
3. When you two team up, you're unstoppable.
4. When they bring up old embarrassing moments.
Don't even go there. Remember what you did in fifth grade? Yeah so do I.
5. Helping them with boy problems.
Because what's yours is theirs and vise versa..
6. Throwing each other surprise parties.
7. You accept their compliments.
Even though they can get a little weird.