Being kind doesn't mean just being kind around people you like it means being kind around everyone. Even on games that have chat boxes or even to people that are walking by. Some people seem to think that even though they don't know that person they don't have to be kind well that's the opposite of what I think. Sometime that person could be having a really hard time and with you saying things about them wouldn't really help. So by doing good things and saying kind words your helping people make the right choices in life.