For many positions, cruise lines do not expect you to have previous experience working on a cruise ship. However, you should call out any experience you have had that might relate to jobs on cruise ships. This can include working at a restaurant, gift shop, health club, retail store, to name a few. Basically many jobs on cruise ships are not too much different than jobs in other industries. Cruise lines are more concerned that you will be a good hard worker and help to make the cruise customers have a wonderful experience on their cruise line.