the diffrence between friends and best friends

Best friends are the ones that come and welcome you on your first day of kindergarten.
Friends say "hey" when they walk past you in the hall way.
Best friends laugh with you when you dance.
Friends laugh at you.
Best friends call your parents "mom" and "dad".
Friends call them "Mr." and "Mrs."
Best friends stand up to the guy who's been picking on you for no reason.
Friends stand by and watch it happen.
Best friends are forever.
Friends only last until you grow apart.