Leaning in and whispering?

today i was talking to this guy (who i may think may like me) and he leaned in towards me and whispered to me that there was a mistake with an equation. he always turned to face me when he talked to me and we had some banter going. he even showed me his fav video. he also laughs a lot around me.

I've had this feeling that he's liked me for awhile but i just wanted a second opinion.
so what do you think?
Leaning in and whispering?
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