(Tour) Guided Session 02: sitting *near* the circle 

Here's a companion piece to the (Tour) Guided Session video: • (Tour) Guided Session ...
THAT video was about what can happen when you're sitting IN a session. But of course, anybody in the bar can be in on the game, whether they're playing or not. And this follow up video widens the circle a bit, to consider the role that punters play.
And here's my PODCAST version to this answer (more in-depth): shannonheatonm...