The mandolin player is taking a lead and thinking, "Dang'it I am hot tonight. My fingers are flyin' and I ain't missed a note. I am Go-od!"
The banjo player is thinking, "Would you look at that honey in the front row! She keeps lookin' at me. Oh ya!"
The guitar player is thinking, "Man I wish the mando player would just give it up, what a putz!"
The bass player is thinking, "Gee...Dee...Gee...Dee...Gee...Dee..."