In December 2010 the Tagesspiegel answered a reader’s question. The boss had offered the du at the company Christmas party. How should the reader address him now? The newspaper advised caution. Ihr Chef hat diese Entscheidung vielleicht nur aus einer Feierlaune heraus getroffen. Your boss may have made this decision only in a party mood. At the next meeting, wait and see. Bleibt Ihr Chef beim Duzen oder siezt er Sie wieder? Does your boss stay with du, or does he go back to Sie? If you have to speak to him first, use Sie.