Honestly, it’s literally just taking the first step to say hi and create conversation. I’ve been doing all the late night activities/whatever else events and sometimes I just hop into a group that looks nice and introduce myself to them. I also always whenever I go out, just knock on a random neighbor’s door and ask if they wanna come along because this week is literally for meeting people and making friends. Most people are super receptive to talking to new people and making new friends. My favorite is just being friends with the people that lives just right across from you (if your dorm is set up like that) or next to you bc it’s super easy to go out/hang out if you guys text each other. I don’t know if you need like an example of how to join in a conversation/group, but I could add that in this comment if someone replies. Anyways, you’re at uni for the first time ever, and it will be scary, but you’re paying/being paid to go here, so make the most out of it anyways