The fact is, disney acting auditions are a nerve wracking experience for actors. Unfortunately, they're an essential part of being an actor. So by following these steps you'll have the best chance of getting the part.
If you are called for a disney acting auditions you will usually be given what are called sides or a few pages of a script that you will have to read at the disney audition. In theater you may also be required to have some kind of monologue ready.
The first thing to do is go over the script and prepare for the part. Find out everything you can about the character you're going to be playing. Concentrate on the character. How old, where from, how the character feels about other characters in the story. Only after you know everything you need to know about the character do you start learning your lines. Use whatever method you feel most comfortable with. You won't be required to know the whole script at the audition but be prepared.
Before you go to the disney acting audition, dress for the part. Wear clothes that fit the character and the story. If you're playing a cowboy don't get dressed up in a business suit. You don't have to go out and rent spurs but wear clothes that suggest the role. Jeans and boots for this role will do fine.
Warm up for the disney acting audition just like a pitcher warms up before a ball game. Do some stretches and vocal exercises. Go over your lines. Don't go in there cold. It's normal to be nervous but in preparing yourself you won't be as nervous and you'll be able to relax a bit.
When you get to the disney acting audition, sign in. You may have to wait for others to audition for the same part. Be patient. Avoid talking with the other actors. They will only try to distract you. Focus on what you came there to do.
There are some things not to do when auditioning for the disney casting director. Don't be a suck up. A sincere compliment is fine but a casting director will know when you're just faking it. Aside from shaking his hand when you enter, never touch the casting director. Focus on your disney acting audition. Once you're done with your audition the director will let you know when they'll get back to you. Leave it at that. Do not make a scene. Just be professional and leave.
If the casting director likes your performance you will be asked to come back. At this time there will be fewer people auditioning and more people watching your performance. Maybe some producers, directors and writers. Wear the same clothes that you wore to the first disney audition and put in the same performance. Remember to just relaxe, get into character and perform your audition for character. Remember, each audtion is a new experience and always learn from then so you can keep on improving.