Offline, go to any jam band concert like dead & co, dopapod, the werks, or dark star orchestra or glitchy bass music concert like Mersiv, Tipper, detox unit, or 3AM. even better, go to a small music festival held on private land (no law enforcement)
I saw the barter system in action, folks just giving away Hallucinogens and pretty rocks, lots of sharing and hugs and general positivity. Even saw one of the homies having an impromptu magic the gathering match on a big flat rock next to a river. They both just happened to bring their decks to the festival.