Guys do you act like this when you like a girl???????????????

[NewFriend]

This guy was talking to me not really making eye contact. He was kind of fidgitity & seemed a little nervous at first. He looked down as I asked him a question. When he looked back up to answer, his eyes met my eyes & it was like all of a sudden he just seemed at a lose of words. Almost frozen or mesmerized (he was still looking into my eyes the whole time). I had to ask him the question again. Then when he tried to talk, he couldn't so he just shook his head "no" to answer the question and it took like 2 or 3 mins for him to answer (he finally had to turn his head before he could start talking). Well, after that, he & I flirted back & forth. It was obvious he was flirting w/ me & I flirted back. This week when I saw him, he acted all nervous to be alone w/ me & hurried out of the room. He only glanced over at me a couple of times. Don't get me wrong, he was friendly but, I didn't see that much flirting. He kind of smirked the whole time we talked. I don't get it. What happened??