if you like someone, you have to let them know. Even if they are seeing someone , you still have to let them know how you feel because you never know what could happen until you do it.
Trust me , you don't want to live life without knowing..
So whatever you do, go for it.
Don't be embarssed when it comes to those things.
yes it may be hard cause you don't want to ruin anything between you two and you dont want to make things akward, but if he sees that your open and honest then he might like the fact that your not shy and your confident in what your doing as long as you dont sound creepy .