There is a problem we all run into in our relationship journeys - a problem I have termed "The Advice Conundrum".
It happens to all of us. We are so completely twitterpated, terrified, transfixed, and turned around that we don't know which way is up.
So we end up having advice [solicited or not] heaped upon us from all of our friends, coworkers, parents, siblings, grandparents, pastors, teachers... you get the idea.
This would be a wonderful help... if people didn't invariably give conflicting advice.
"You should ask him out!"... "You should let him come to you"... "Guys are dense, they don't know when a girl likes them!"... "If he's interested enough, he'll make it his business to know if you're available or not"
And so forth, and so on.
This overflow of paradoxical ideas makes following advice hard to do, whether we wish to or not.
So what's the cure? Well, since you clearly can't listen to everyone... ignore them all.
Granted, some things are obvious and should not be ignored: don't be overeager, don't be too closed off, don't paint a huge sign saying "I LOVE YOU GEORGE" and hang it on your front door.
But these are things you can already guess at and are probably trying to do; but they are also hard to gauge [especially that last one; I never know whether to use pink or purple paint...]
Best advice I can give [because that's not ironic at all] is to be sensible, get to know the guy, and if you feel like you want to know what's going on... ask him.
Claim you are confused [which is almost always the absolute truth], and ask for clarification. Ask him if he has any sort of interest in you. If he's worth having, he'll give you an answer.
Last bit of advice... be prepared for that answer to be "No".