I'm an intern in San Francisco and I was here for 3 weeks. I'm under 21, so I can't go to bars. I want to meet girls in person, not swipe right all day. What are some ways to meet girls in this situation?

I want to try doing "day game", but I don't have the confidence yet. I want to start with something easier, and eventually do day game if I have to. Are there easy ways to meet girls in San Francisco?

P.S. anyone in SF want to try picking up girls together? Maybe that'll give me the confidence I need.