How I will know that a boy have crush on me !!!

So the post gonna be long paragraphs also avoid my mistakes in english as English is not my first language…
Discription;So I 26F recently shifted with my family as a renter in a new society.. kind of rich environment … As my family don’t match the financial stutus of this society we are not that rich or earning well cause only out of 6 only 2 members of my family is earning… So we don’t have all the luxury that the most of the residents of this already have… Also there is a lot of born rich and handsome college going boy are here .
Recently I have realized that I am kind of good looking girl I mean no one have ever complimented me about my looks but .. I am already graduated and not doing anything else I stay at home preparing for some exams for government job ….. And as I mentioned above about lots of rich college going boys … So I assume one of them is interested in me as I don’t talk with anyone in the society cause my family is very conservative…. About girls talking to boys … So this boy is very much of my type gym rat, dusky very deep voice muscular.. tall .. also he is younger than me … He has his own expensive bike that sometimes he park near my window… I think he notices me … But he have never approached or talked me… His family is cool though …. Only once we have made eye contact and genuinely I want he should at least once approach me just for being friends or just to tell me that he notices me… I feared to approaching him because of my family background…. And I don’t have any social media like insta FB X snap … So .. how can I know that he is interested in me or he already have a crush on me … Cause I have this wierd feeling inside me that he definitely feel something about me….. Any man can you explain me aur guide me about this whole situation…
P.s I don’t about his relationship stutus but I feel he is in one.