You probably have some things in common, but you'd need to talk to each other to find out what they are. Find some random excuse to start a conversation with him. Ask him what he likes. See where that leads.
If he's as introverted as me, there are 2 approaches...
1) You will do most of the talking
2) You will ask the right questions that he might actually want to talk about
#1 is probably easiest, at least at first, if you can deal with doing most of the talking. I know I personally don't like it when people ask me questions if they don't really want to listen to what I have to say (because talking is a lot of effort for me and I don't like to waste effort)... so make sure you only ask things you really want to know more about.