Go to clubs, do drugs, etc. i’ve met tons of people at festivals or clubs or whatever. Another option is to talk to homeless people, almost all of them love talking to people. Being treated like trash constantly creates a deep sense of isolation. Moreover, talking to homeless people is really interesting, I’ve learned a lot from them. Some of the most memorable and impactful conversations I’ve ever had has been with the homeless. Also, volunteering or even just hanging out at shelters has been very interesting.