When not required to be in a given place, extras generally congregate in some designated area away from the important people, where they read, chat, play cards, or otherwise find any way possible to stave off boredom. Beyond being boring, in some cases the life of an extra can also be extremely uncomfortable.
Can I wear jeans to an audition?
You don’t need to dress like you’re going in for a corporate interview here. Your clothes shouldn’t be a wrinkled mess, but you also shouldn’t be wearing business attire to an audition. A good pair of jeans can go a long way, and it’s worth investing in a pair for auditions alone.