I asked a group of 13 year old boys and girls to come up with a list of what they liked about their friends. They said that good friends:

* show an interest in what people do
* are good at giving compliments without going overboard
* go around with a pleasant expression on their face
* laugh at people's jokes
* are kind
* ask, not demand, to join in
* offer to help others with work or carry things
* invite people to do something
* hang around places where other students are
* are welcoming to new students
* are good at thinking of something interesting to do
* are willing to share
* are humorous and tell jokes
* are fair
* are good at organising games or activities