Why did this man give me a creepy smile?

I don’t know him but I do see him occasionally. We have only ever said hi to each other and that’s it. He overheard me joking with a friend about how big my breasts are. I turned around and noticed him smiling and staring at me.

I didn’t do anything apart from scuttle off feeling super embarrassed.

Surely if you overheard something like that, you would just ignore it? Why would he have stared and smiled at me? It was a full on stare haha

Why did this man give me a creepy smile?
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