Instead of trying to come up with something that you think the other person would like to talk about, talk about something that you're interested in finding out about them. Like sometimes you ask the person a question about where they work or what their major is. Personally I don't really like the responses to those questions unless they have jobs that interest me or I think are cool. Like if they were a snake charmer, a botanist, a farmer, a chicken whisperer etc. I don't care about the work of a doctor or an engineer. So sometimes it's better to avoid that type of question until later on in the conversation when more rapport has been built. But again if you're not that interested in the job then there's no point going very in depth. Instead if you mostly like to talk about family, friends, experiences, art, technology, philosophy, social dynamics, social issues go for those topics. If you're interested in the topic then you'll be more interested in what the person has to talk about and plus you'll be more interesting. Also people know when you want to talk about something and when you're talking just for the sake of talking. Or asking questions just for the sake of asking them and trying to continue the conversation. Don't do that. Have a genuine conversation where both of you can actually make a connection and one that you can enjoy and find out things about the other person.