Ask your BM what is required of you regarding crew and guest safety drills. You may be required to participate in a weekly crew drill, and may be required to participate in the weekly guest drill in a non-essential area. Drills or emergencies are announced by 7 short and one long blast on the ship's whistle, at which time you should grab your lifejacket and go to your assigned station. All of this will be covered in your training sessions.