What a production, PT Barnum would be proud.
In any live production, whether it's a stadium or a small bar, the patrons and musicians are a team. They feed off the energy of each other. I remember a group of us following a local band (Children of The Night) for a number of years. If the crowd was into the band it was fantastic. If the crowd was more interested in getting drunk, hooking up, or socializing, the band would play to our table(s) where the feedback was guaranteed.