Making new friends is hard especially if you are a shy type of person. I myself is having a hard time making friends because I am too shy and most of them don't find me interesting because I am too quiet and they see me as an unapproachable person because of my look. So I advice first is to smile. Smile as if you knew them in a long time. With that genuine smile, they will see you as a happy person and they may find you interesting.