If you do do what I have done during my cruise, let me give you some tips:
-Do it at night or in the wee morning. (Most cruise ships will offer late night dinners)
-Pick a variety of foods depending on each night's menu.
-Do not put too much food on your plate. Its possible the weight can press keyboard buttons.
-Have a friend as lookout. Curious bystanders would take notice and ask questions of what you're doing.
-Avoid doing COMPANION SETUPS in places were people are more likely to be. (Bars, pools, indoor areas except restaurants)
-Have enough companion material to last you for days.