Do you acknowledge birthdays? Who would I contact?

As some have reported before me, they do ask if your celebrating anything and the They take notes if you are. They also recognize veterans during the show.

They acknowledge all anniversaries. When we went on the boat they asked us in the check-in line if we were cerebrating anything.

Yes they do private parties or will just sing to you on the ship during dinner. You can call the number on the website.