Have a large network of (offline) friends. Weekend golf group, drinking buddies, diligently attend college/school reunions, attend a few industry specific event

Have a large network of (offline) friends. Weekend golf group, drinking buddies, diligently attend college/school reunions, attend a few industry specific events in the Bay Area every month. Try to strike up a conversation with random people at those events. And after pleasantries, ask about their work and drift the conversation in your desired direction. Sorry don't have any specific books or podcasts I can recall.