For one or two persons to monopolize a conversation which ought to be general, is exceedingly rude. If the dinner party is a large one, you may converse with those near you, raising the voice only loud enough to be distinctly heard by the persons you are talking with. PICKING TEETH AT THE TABLE. It is a mark of rudeness to pick your teeth at the table, and it should always be avoided. To hold your hand or napkin over your mouth does not avoid the rudeness of the act, but if it becomes a matter of necessity to remove some obstacle from between the teeth, then your open mouth should be concealed by your hand or napkin. SELECTING A PARTICULAR DISH. Never express a preference for any dish or any particular portion of a fowl or of meat, unless requested to do so, and then answer promptly, that no time may be wasted in serving you and others after you. DUTIES OF HOSTESS AND HOST. Tact and self-possession are demanded of the hostess, in order that she may perform her duties agreeably, which are not onerous. She should instruct her servants not to remove her plate until her guests have finished. If she speaks of any omission by which her servants have inconvenienced her guests, she must do it with dignity, not betraying any undue annoyance. She must put all her guests at their ease, and pay every possible attention to the requirements of each and all around her. No accident must disturb her; no disappointment embarrass her. If her precious china and her rare glass are broken before her eyes, she must seem to take but little or no notice of it. The host must aid the hostess in her efforts. He should have ease and frankness of manner, a calmness of temper that nothing can ruffle, and a kindness of disposition that can never be exhausted. He must encourage the timid, draw out the silent and direct conversation rather than sustain it himself. No matter what may go wrong, a hostess should never seem to notice it to the annoyance of her guests. By passing it over herself, it will very frequently escape the attention of others. If her guests arrive late, she should welcome them as cordially as if they had come early, but she will commit a rudeness to those who have arrived punctually, if she awaits dinner for tardy guests for more than the fifteen minutes of grace prescribed by custom. RETIRING FROM THE TABLE. When the hostess sees that all have finished, she looks at the lady who is sitting at the right of the host, and the company rise, and withdraw in the order they are seated, without precedence. After retiring to the drawing-room, the guests should intermingle in a social manner. It is expected that the guests will remain from one to three hours after dinner. ACCEPTING HOSPITALITY A SIGN OF GOOD-WILL.