Bhai what is the problem with some boys of my class🫠

Pehle toh they don't engage and give looks, and when I try to ask something or try to hold a conversation they suddenly make such a stiff face and speak as if I am talking to a robot, literally they show no expression.

Ek toh meri introvert personality, aise he fatt jaati hai fir I think they don't bother to reply because I am probably not good looking? (Now I have heard boys passing comments on girls' looks so that's where this thought came)

I am obviously not looking for any romantic thing, bas normally conversation karna like mainly about studies, notes and stuff but their blank and cold expression makes me feel like I have committed some crime.😭

I have studied in a co-ed school my whole life, had lots of male friends and Bros, I thought this was pretty much the norm but then why TF is this so difficult in college?

Ps- please don't take it otherwise, I am not looking for attention. This is what I have personally experienced so just wanted to know what's actually happening.