Whats up with this guy??

This new guy started working at my current workplace. He's very attractive but I always manage to feel completely awkward and uncomfortable around him. Every single time he passes by me when we're working, he says hey and asks how I'm doing and seems like he wants to start a conversation, so lately I've warmed up to him. We joke around a little bit and it's fun. He just has this innocent and shy demeanor that I am really attracted to! Whats the deal here? Does he have a thing for me or is he just trying to charm me? What should I do? It's literally EVERY time he walks by me he feels the need to talk to me- he starts it every time. Not going to lie, I like it!

Is he interested in long term or short term?

Just continue to speak to him and chat. Lay low and by all means do not come on to him. He says "Hey, how are you doing", you say "Hi, I am fine (or however you say hi) and keep working. It may just be as simple as him saying speaking, because he is not rude. Keep it simple. If he wants to talk to you in any other way, He will. Men know how to get what they want. You say he has a innocent and shy demeanor...that's cool, but stay on your toes. You said he is attractive and you like the attention, but (no offense) don't become thirsty...play it low-key. Keep doing your job and speaking to your co-worker. As women we sometimes allow our minds to take us too fast too soon. And a man will do what we allow them to do, they will do what they can get away with. Do not allow yourself to become some "break booty"; and trust it can happen faster than you know and it will be over even faster. Then you will have issues at work that are not necessary. So just keep it low-key until he REALLY shows interest in you..right now he is just speaking and chatting. AND when he shows REAL interest in you..STILL play it low-key. Get to know him and what he is REALLY about. That takes time and going on some dates-out in public-after work hours; not lunch breaks and house calls. Keep it where it is and let him lead, then the ball is in your court and it is your game; which it is ALWAYS our game anyway (most men will admit that), but a lot of us (women) don't play OUR position and end up getting PLAYED. There may not be anything "up with this guy"--but time will tell.