What do I do if I don’t know what I’m meant to be doing?
It is very important that you pay full attention to the instructions you are given, and only ask the ADs questions if absolutely necessary, as they are very busy people. Ask a fellow artist and see if they can answer your question before troubling the production team.
If you are told conflicting information by the crew always go with the last instruction you were given and remember the name or description of the person who gave you the directions in case you are asked.