Here's a companion piece to the (Tour) Guided Session video:    • (Tour) Guided Session 01: sitting *in...  
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 indepth): https://shannonheatonmusic.com/episod...