Being seen and heard.
When you enter into the realm of stand-up, stage or cabaret magic you soon realize that the environment is rarely ever your creation or choice. Imagine the worst possible scenario you could be faced with and something worse than you ever imagined will eventually be a reality. You must be prepared. You are a professional. You have to construct a bullet proof show that will work in any environment you are thrown into. Your angles, use of a microphone, the proximity of the audience how to play large with smaller tricks and making sure the larger effects play well at a short distance from the audience are all things to contemplate.