What does it mean when a guy keeps trying to read your emotions?

As a disclaimer I have no intention of starting anything until I leave this job at the end of the year lol. However, I’ve had a crush on this guy I work with for a little less than a month and right now we have a friendly relationship.

I noticed we look at each other a lot, but one day he told me that I was an “interesting person” because I make funny facial expressions to myself and I seemed nonchalant. I wasn’t sure what to make of that because I’ve never been told any of those things before. Recently I saw him stare at me like he was looking straight into my soul for a hot minute (this happened more than once). He then tells me that he was trying to read my emotions because he couldn’t tell if I was sad, bored, happy, mad, etc.

Does this even mean anything? I’m definitely probably overthinking but I haven’t met a guy who pays that much attention to how I’m feeling in the moment.