What's the deal with guys that stare at you when you're eating?

Whats the deal with guys that stare at you when youre eating?

There's this guy (who said that he doesn't like me) that was staring at me when I was trying to eat and he didn't look away when I caught him, instead he had a small grin on his face and he kept staring at me ( he has done that for about 2-3 times) . What's the deal? Do you guys stare at girls that you're not interested in them?

What's the deal with guys that stare at you when you're eating?
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