try staying out on deck with friends at least one night! its really peaceful(except when windy) and its a great place to talk and look at the stars (or fall asleep on the lounge chairs lol)
Be outgoing! Go over and make friends, youll get WAY more that way.
Don't be afraid to act goofy!
Try not to get toooo close to ur cruise buddies but try to make them good friends that you can stay in touch with.
Go on shore! There are wonderful places to explore.
Stay up as late as you can! Everythings better after dark!