Remember that you should always arrive at an audition in London fifteen minutes earlier. Acting auditions are a hectic process, and things are always changing, so it is always better to be early than late. Do not dress in any costume unless asked to, but dress in attire that best suits the role you are auditioning for. When you first arrive, report directly to the casting assistant. Once you have signed in with the casting assistant, wait patiently for your turn. Be quiet and respectful to the casting assistants; any rudeness will surely be mentioned to the casting director. If you have received your "sides" (pages which will be read in audition) rehearse to yourself and wait for your name to be called. Do some exercises that will help you relax, like deep breathing, or closing your eyes and visualizing your scene. The main goal in the waiting area is to stay lose.
Sound advice, or so he thought, had recommended to him that he try auditioning for this company at the last minute, even though their flier advertised cage fighting and midget tossing clients. Auditioning with these guys should be no problem, he thought, I'll be the only normal one there!