Okay, here's something I'm trying to put up for my site. What songs do you feel should be played in a Jam session, where you would be in the guitarist's chair? And also, what would be the 5 Dos and the 5 Don'ts of Jamming? Here are mine:

Songs:

Hey Joe
Sweet Home Alabama
Red House
Mary had a little Lamb (SRV not the nursery rhyme)
So what (Miles DAVIS)
Mustang Sally
The Thrill is gone
Little Wing
La Grange (zz top)
...

Do's

-Tune up
-Turn that damn amp down
-Learn the ENTIRE song
-Call the ones you CAN play
-Tell the guys if you can't, just sit down and leave the chair to someone who can play the tune.

Don'ts

-Be a solo hog
-Show off, make music.
-Blame the other ones, encourage them if they didn't play it right.
-Think you're the best in the house (even if you are, because that's lack of modesty)
-tell you won't play the song if you don't like it, leave the chair to someone that likes it and that can play it.