The Captain had no apparent intention of deicing because it wasn't until I had made a fuss that someone came out from the cockpit to look at the wings. By that time we were some way up the taxiway for runway 23 to the point where we were unable to turn around. We pulled over to the very end of the taxiway whilst alllowing other aircraft past us to take off. We then taxied back the way we came after Geneva ground must have stopped taxiing traffic to allow us to do so.