In regard to how long it should take to get a call back after an interview, it can take anywhere from one day to several weeks. There is also the possibility you will never hear back. It is acceptable to reach out after a week if you do not hear anything.
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.