The usual lunch hour is half past one. By a quarter to three the last guest is invariably gone, unless, of course, it is a bridge luncheon, or for some other reason they are staying longer. From half an hour to three-quarters at the table, and from twenty minutes to half an hour's conversation afterwards, means that by half past two (if lunch was prompt) guests begin leaving. Once in a while, especially at a mixed lunch where perhaps talented people are persuaded to become "entertainers" the audience stays on for hours! But such parties are so out of the usual that they have nothing to do with the ordinary procedure, which is to leave about twenty minutes after the end of the meal. The details for leaving are also the same as for dinners. One lady rises and says good-by, the hostess rises and shakes hands and rings a bell (if necessary) for the servant to be in the hall to open the door. When one guest gets up to go, the others invariably follow. They say "Good-by" and "Thank you so much." Or, at a little luncheon, intimate friends often stay on indefinitely; but when lunching with an acquaintance one should never stay a moment longer than the other guests. The guest who sits on and on, unless earnestly pressed to do so, is wanting in tact and social sense. If a hostess invites a stranger who might by any chance prove a barnacle, she can provide for the contingency by instructing her butler or waitress to tell her when her car is at the door. She then says: "I had to have the car announced, because I have an appointment at the doctor's. Do wait while I put on my things--I shall be only a moment! And I can take you wherever you want to go!" This expedient should not be used when a hostess has leisure to sit at home, but on the other hand, a guest should never create an awkward situation for her hostess by staying too long. In the country where people live miles apart, they naturally stay somewhat longer than in town. Or two or three intimate friends who perhaps (especially in the country) come to spend the day, are not bound by rules of etiquette but by the rules of their own and their hostess' personal preference. They take off their hats or not as they choose, and they bring their sewing or knitting and sit all day, or they go out and play games, and in other ways behave as house-guests rather than visitors at luncheon. The only rule about such an informal gathering as this is, that no one should ever go and spend the day and make herself at home unless she is in the house of a really very intimate friend or relative, or unless she has been especially and specifically invited to do that very thing. =THE STAND-UP LUNCHEON= This is nothing more nor less than a buffet lunch. It is popular because it is a very informal and jolly sort of party--an indoor picnic really--and never attempted except among people who know each other well.