It has to be said, but several things annoy me about roleplays. One is when the DM/GM clearly loses interest, and it becomes incredibly boring for everyone. I don't want to be playing D&D when the guy who's narrating it sounds like he'd rather be watching the grass grow. On the other side of the scale, I don't like it when a DM get's to involved, and they try to push you to do certain things because they've planned out some scenario which requires someone to go here/do this. My favorite session I've ever joined was when the guy DMing had absolutely no clue what he was doing, and just made up the whole thing as he went along. Great fun though.