Off to the Bluegrass Shack

Hey everyone,

For my research paper this week, I'm going to go to the Bluegrass Shack and sit in on one of thier jam sessions. I'm really looking forward to this as it will be close contact with bluegrass musicians. The view of the musicians wasn't all that great when I went to Fort Kaskaskia and I want to be able to see the different faces that the musicians make as they play.
My violin teacher is constantly telling me that I have a tendency to not blink or breath while I play. She sometimes has me write little reminders in my music. I wonder if other musicians have the same problem, do they make funny faces, do they breathe, look around, smile, etc. This really has me intrigued.
I'll also try to pick up on any signals they might use to communicate with one another. For example, when one has the melody, how do they signify who they would like to pass it off to? I want to also listen to who keeps the tempo (which is the speed). How do they let the other musicians know that they want to speed up or slow down?
I'm really very excited about this trip and hope that I'll find a literal treasure trove of information. I'll let you know what happens.

~Kira