Article: If possible, you should try to do your trick it for a stranger or a casual acquaintance, as these people will be more impartial. Whatever the reaction, by gauging your audience, you can better know how to improve your performance. It's easy to forget details, especially after the rush of a performance. Keep a small diary or notebook backstage and jot down the reactions to your performance once you're finished. You should also note any personal critique. Areas where you stumbled should be smoothed with more practice, awkward pauses or other difficulties can be improved by refining or thinking up patter. Make changes according to your notes and rehearse your trick until you are comfortable again. Now you're ready to try your trick in front of another test subject, or maybe even a small test audience. The atmosphere will always be slightly different when you're on the spot doing your magic. You'll have prepared yourself physically and emotionally for your test audience, but now you need to return to your stage, even if it's only a classroom or the break-room of your office.

What is a summary?
Perform with a test audience. Take notes after your performance. Review, revamp, and retest. Return to the stage.