As someone in my late 20’s and who’s moved around quite a bit, I will talk to most people about most things. If I want to know something (within reason), I’ll ask. I’ve made friends and formed a trivia group in a shared Lyft when they did them, just by asking if they liked trivia. I wanted to know about careers at a museum in NYC so I asked the woman working the desk and we got to chatting. I asked someone about the beer they got at a show and that lead to more conversations about our mutual interests. If I see someone wearing merch or something I like, I’ll tell them. These open conversations and can lead to more. Sometimes they don’t. Sometimes they lead to friendships and sometimes they don’t but it’s still a pleasant conversation nonetheless. It just depends on the person. If I embarrass myself I can laugh it off and take comfort it knowing I probably won’t see these people again or one of us will forget in a few days. It is harder if you’re a guy. I am also a guy but I have a baby face and have been told I have a “very non threatening vibe.” YMMV. I will add I have autism and I think the benefit of that is just breezing right past small talk.