When I’m on travel, I’ll talk to strangers on the plane or at hotel/airport bars. It’s not hard to find something in common with someone who is willing to talk.
One time, I met a young man who flew all over the US to fix pipelines. Part of his job was to install a specific type of flow meter that I happen to work on years before. It was a good conversation that would have never happened if stayed in my shell.
That right there is known as a “Divine Appointment.”