Performing musicians practice our instruments away from the stage in order to make the best music we can. How can we practice audience interactions?
In many performances, interacting verbally and nonverbally with the audience is integral to the experience: talking about the history of a song, pumping up the crowd, playing to particular people in the audience, making transitions between one piece and another, stalling for time while retuning an instrument, ....
But there are pitfalls: awkward personal stories, running out of things to say, rambling, ....
What practice techniques/exercises can be used outside of performance to develop these interactive, audience engagement skills?