Hopefully your appointment is with a good sales assistant!
Wear an interesting watch, hopefully sparks some conversation
Be polite and nice, don't be rude or an asshole acting like you are entitled to a Rolex.
Talk about your watch hobby, I assume if you are on here you like watches. It would be good to put across your interest in watches, so you're not a flipper but someone with a passion for watches.
Talk about your watch collection, grail pieces etc etc
Perhaps make up some reason why you really want the model you are after
Ideally have an undestanding of Rolex line up, would be useful to know the technicalities.
Take their business card then drop them an email few days later
It's basically like a job interview, and you kinda want to stand out from the crowd. It's not a wait list, as opposed to a client list and when a watch model comes in, they will look on the list and call someone, so good to leave an impression.
Good luck!
Let us know how it goes!