Dating

Crush asked me for my name even though we talked once?

So this guy who has been my crush for a year already, started working as a waiter half a year ago. I went a couple of times at the bar/caffe but my sister goes there more than me, so he remembers her oder. I texted him once and we spoke a little bit about a funny moment at the caffee but it lasted only half an hour cause it was 2am. A couple of days ago I messaged him again but he replied with a heyy, and when I asked him what he's doing he didn't reply anymore.
Today, I went at that place with some friends and my sister. He was looking at me and the funny thing is, when we went inside to pay, he asked what my name was, when he clearly knows *I guess*. So i told him, but my voice came out a bit harsh, yet he was still smiley and happy looking. And he said "oh so you're her" then my sister paid and we left. He wished us a good night and I looked at him and wished him a good night back.
Why did he ask me that question? And while taking the order he was looking at me instead of the person who was ordering. But he was right behind me.. and I looked at him just for a little while... what could it mean, do you think he'll text me soon?
Crush asked me for my name even though we talked once?
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