How do you make friends

Okay I’m genuinely asking: how do people actually make friends in college? I’m writing this for my cousin because I’m worried she doesn’t really have friends or a group. I don’t even go to Tech I go to another school lol. I was just lucky enough to make a friend during orientation immediately, and that friendship led to more friends and eventually a whole friend group.

But seriously how does someone make genuine friends without it feeling one way, artificial, or surface level? My cousin is a junior, an introvert, and not really into parties but she’s genuinely a really cool person. I know she would get along with regular down to earth people not necessarily the sorority or super preppy type if that makes sense.

How can she meet people and build real friendships without relying on parties? Since she’s already a junior, it feels like everyone has their established friends and groups which makes it harder to get close to people. I really just want her to find cool genuine people she can become close with. lose with. How someone tell me how?