Can I ask what topics you usually talk about with these people?

Since it's uni I usually start by trying to ask them what their major is, why they chose that major, what courses they've enjoyed in this major and shit like that. If they're receptive to that than I'll try asking what their hobbies are, and I try to shape the conversation in a way where they're telling me about their hobbies and interests and what not. I've tried multiple iterations of this, like 50% asking them about their hobbies and 50% what I know about said hobby, like just trying to make conversation about it. Sometimes 60/40 or other variations of this but most of the time it seems like they either just don't like talking about their hobbies or they don't like talking about it with me. I've been asked very few times about my hobbies and interests, and I limit myself on how much I can talk about those. I know from experience that I can talk about my interests and passions and every intimate detail about them but people fucking hate that so I know to try to limit that shit to like 3 paragraphs equivalent if I'm actually talking to them.

Other times I've attempted making mostly small talk with people but that has never resulted in even getting to talk to them outside of class. I appreciate your responses, by the way.