The bartenders on board are a unique group of people. Not only are they there to serve you your favourite concoctions, they also commiserate with any and everyone on any subject you may wish to discuss. I found one fellow from Turkey in this illustrious group who has an equal interest in paleoanthropology as do I. We had many great and lengthy conversations.
They also pride themselves on being quite inventive when it comes to actually serving up your favourite beverage. So much so that they hold competitions to see who is the master server on board for that particular cruise. It's amazing what they can do.