Why did he randomly come visit my shift at a work. ?

First of all. He's an ex coworker.
Second. He's never done that before. He has visited other people on shift, but never me on my shift.
He didn't buy anything, just came by to come by I guess. Chatted for a few. Then I had to get back to work.

I'm hoping this is a sign he likes me, but I don't want to be THAT girl. It was just me on shift, he knows who's scheduled (he's still in the group chat for some reason.)
Why did he randomly come visit my shift at a work. ?
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