No matter what, don’t say sorry! One of the biggest mistakes you can do during an audition is to keep apologizing. This is one of the biggest pet peeves of many casting directors, so the best thing to do if you make a mistake or forget a line is to stop, collect yourself and continue on as if nothing has happened. This will show the casting directors that you are confident, able to think on your feet, and have the ability to not break character if something goes wrong.