Though we say friendship does not expect anything:
Few Things are expected in best friendship
1. A Smile after a fight.
2. To console a friend when he/she has a problem.
3. Wishing for a birthday at 12 in the night.
4. Spare some time even if you are busy.
5. Help even if they dont ask you.
6. When you message and they dont reply properly understand that they are not happy and make sure you dont hurt them.
7. Not to embarrass them in front of strangers.