Make sure there ain't no game playin.  Ask around, make sure he isnt with someone else.  Find out if he's a nice guy.  Don't have to be obvious about it, but you do need to protect yourself, I don't think you want a broken heart if he's playin you.  Be careful, but have fun too.  If he likes you..go out, get to know him first, before you open up to him too much.