First time Cruise - Advise?

My best recomendation for first timers is the least amount of days at sea. Several cruises especially southern carribean make several stops with the least amount of sea days, that way if u can't handle the motion of the waves you only cruise at night with your days in port. Also bigger boats tend to handle the waves better and try to book your state room more towards the center of the ship(front to back). I noticed the shorter the cruise the younger and wilder the crowd can be. 7 day cruises are my favorite, I'm too old to party every night but too young for the senior crowd. I've been on dozens with no issues from(like food poisoning) but it never hurts to bring bottled water off the ship with you. I eat food at every port it's the best way to sample other cultures. Good luck with your cruise decision and hope u enjoy as amuch as I do.
Bob