Would you give a wide smile to a girl you are not interested in?

So there is this guy i have a crush on living in our same building

usually we just say hello at eachother and we have this weird unexplained eye contact sometimes.. the last day i met him at the out door he was talking on phone but when he saw me he shined with this verry big smile and nodded with his hand on his chest 🤪

would he bright up like that if he doesn’t like me at all? I know i would never smile like this to a person i have no feelings towards

So i am really confused if he likes me or not I couldn’t tell by his behavior.. maybe you can help me

Would you give a wide smile to a girl you are not interested in?
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