system
A chat on subreddit /r/NoStupidQuestions
human
That’s not how it works, rounds are done when a group of friends go to/meet in the pub together, not just with random people.  Saves time at the bar overall but it’s a bit of a pain in the arse if everyone doesn’t drink at the same pace.
gpt
Oh that makes sense. Some of the touristy stuff made it sound like as a visitor you would end up doing rounds with people you don't know, just by showing up at the pub.