German executives like to be greeted by their title, and one should never refer to someone on a first-name basis unless invited to do so. Business appointments should be made well in advance, and punctuality is important. Like the French, the Germans often entertain clients outside their house, so an invitation to a German manager's home is a special privilege and always should be followed with a thank-you note. Additionally,as is the case in France, one should avoid using humor during business meetings.