Before I go to my cabin, I check in at Guest Services, or wherever the Navigator says, for various tastings (assuming I haven't been able to book online previously) and book them. Then go to my room, check my excursion tickets for accuracy and go to Port Adventures to correct if necessary (had to get them fixed twice), check out my dining rotation, check out the Navigator or app for plans for the cruise plus menus for said dining rotation, unpack carry-ons, go for lunch, wander around, take pictures (even though we have hundreds of the same pictures already), unpack (if bags are there), say hello to our room attendant, check out what movies are playing on TV and maybe watch some of the Disney channels for a bit, try on the lifevest to make sure I remember how to do it and that there's no problems with it (yes, always), check out where we are supposed to meet for the drill.
After the drill, head to deck party, after party grab some pizza or snacks, back to room, sit on verandah with snacks and champagne that was previously arranged for delivery to stateroom and watch us leave port.