Is he just being friendly?

Usually the answer is yes give a little push and see where he takes it.Either way what do you have to lose.

There are a million possible answers to this, so you will have to go to the source. Pray about it, asking God to give you the words and insights you need, then ask him in a way that doesn't back him into a corner, but leaves him with the option of honesty being a blessing. God can give you the best insights into his soul as well. Just don't judge, or turn on him, since that will cause him pain and he will withdraw, losing the trust he has already shown.

Well it counts on the guy. Because there are some guys who are naturally friendly. But if you like him show hi that you do. he's not a mind reader