I generally say hello and be polite for the most part but honestly that's about it because there is no point in trying to make friends in the duty finder when there is no form of communication cross server and no way to ever play with each other again. If it was possible to communicate and play with other people from different servers I might be a little more vocal in DF but until then it's not going to happen, I simply want to get the boring dungeon over with and move on.