If you ask me how to make friends,I would say to know whether a person is good or not is the prerequisite.I think a person who will be a real friend shuold satisfy the following conditions.
First,I don't like a person who likes to run down others,so this kind of person will never be my friend.Second,I think my friend shuold be an excellent person,and she/he is always ready to help others.Most importantly,a real friend should be sincere to me,and she/he is willing to share my happiness as well as my sadness.