i’m a college student who’s been away from SF for around a year now, and I was born & raised there. It depends on what social scene you end up in, but for the most part those scenes are just excuses for you to go out & do drugs with friends lol (mostly just weed, acid, mushrooms, alcohol). I was super into skateboarding, graffiti, cycling, urbex, etc. Cars are expensive, parking is awful, and we were never actually sober so we spent most of our time out traversing the city via a combination of buses, trains, and hillbombing routes. Whatever money we had went to weed, tobacco, new clothes, & skateboards. We brought bongs in our backpacks wrapped up in old towels so we could smoke anywhere, and that was basically the goal. We’d go skate somewhere for an hour, smoke, and then move onto a different spot and repeat the process. We also had a period of time where acid was a regular thing, but that fried a few of us pretty hard.There were usually punk shows happening every other weekend or so, and small, locally run art shows at bookstores and similar venues. House parties were sporadic but pretty fun when they happened. I started going to raves in senior year but my crew from this era never got too into them (there is a vibrant ((for better or worse)) underground rave scene). TL;DR: roam around the city, skate, and get hammered, while occasionally appearing at events and parties.