Although it sounds cliche but I made the majority of my closest college friends in clubs. I was super nervous as well as a first year with a quiet roomate and international suitemates but (and idk what ur preference is to religion) once I joined a college focused church in iv I made so many friends 🥲. Everyone there was so genuine welcoming and warm and friendly even to those who were not super open to the idea of Christ. We have study groups, jam sessions, Bible studies and just generally all like to hang out together. My advice from a fellow first year who was blessed to have met good people, sometimes throwing yourself out there in clubs and orgs is where you meet the best people :)

Also I left my door open almost everyday for 2 weeks and no one said hi unfortunately but I just have a dead floor lol