I always liked Hollywood's system. Cattle call, usually wait 20 minutes after measurement/photo/sign-in to go in with a group of 15-25 or so into a ballroom.
Inside, they play scary music. You're meant to "stalk" unseen prey in however manner you choose - the music builds, then "drops," at which point you're supposed to go nuts.
They're looking for control of your body, commitment to the bit, and endurance. They're watching carefully *after* the exercise to see who's deeply out of breath.
After that, everyone lines up. Three cones in the center of the room. You pick any character you want (sometimes you announce it to the panel, sometimes you don't), then you "scare" the cones efficiently without touching them. Everyone does this, and you're done.