Hi Im a newbie learning blues on bass got the Ed Friendland blues book, its great. Wanted to know....some blues tunes end the progression by just staying on I, others have the V turnaround. In a jam situation... -What is the most eloquent way mid tune to walk over and ask another player about the ending part? -If I cannot ask, and need to decide on the spot and I am not familiar with the tune what should I play? Thank you!