Again, presentation does not mean stage lights or fancy clothes...it just means something the audience can look at and feel good about watching.

Many people, especially non-musician and non-musical, "hear with their eyes", and even in a NH a performer, well dressed, good demeanor (eye contact/smiling), and good "stage presence" even on the smallest and humblest of stages will usually be asked back...of course, the music has to be good as well.

Ian