What are the qualities of a good friend? True friendships can start instantly but they take time to build. Here are a few qualities to look for when making friends as a teen -- and beyond. A good friend is honest.. A good friend is fun, unique and interesting.. A good friend is attentive and adaptable. A good friend is supportive of you and your goals. A good friend sticks with you in good times and bad.They are also patient with you when you make mistakes -- even big ones -- and learn how to forgive you when you hurt them. In other words, they treat you as you'd like to be treated, even when you aren't at your best.