We are living in a time when visitors expect content to be more and more entertaining. Should we focus more on the “show” or on the “science” in order to deliver our message? Written scripts of science shows can help inexperienced communicators in this dilemma, but sooner or later they have to improvise. Does improvisation improve dynamics or is it dangerous because it steers away from the well-rehearsed script? How much freedom does the performer of the science show have? Do the visitors prefer classic, jazz or pop? Should we hold back from punk and heavy metal?