Why is he smiling?

Recently I chose to stop wearing makeup to go to work. Wearing makeup everyday was harming both my skin and my confidence. It was a hard decision, but a good one 😊

A few days after I stopped wearing it though, I noticed one of my coworkers started to act different around me.

Before, he used to wave at me with a serious expression, and barely spoke to me.

Now, he smiles a lot, even showing his teeth. He still waves at me, but it feels a lot warmer than before, like an actual greeting. Now he says "hi" whenever he sees me and has stopped by more than once to watch or ask what I'm doing.

This drastic change in his behavior is confusing me, I don't know what came over him.

Why is he smiling?
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