Observe.
- listen to what other are talking about; could there be a common interest of yours? Can you find out more about these subjects? Pay attention to tone of voice and vocal mannersisms
- watch how they communicate with body language and mannersims

Learn.
- read up on or learn about the topics and interests your peers are talking about

Experience.
- try to immerse yourself in those things the people you are interested in find important or of value

DON'T change yourself. You are still you and your own interests are important; but, were you to find something in common it will be easier to start from there.