The Ladies' Book of Etiquette, and Manual of Politeness

Do not make any display of affection for even your dearest friend; kissing in public, or embracing, are in bad taste. Walking with arms encircling waists, or such demonstrative tokens of love, are marks of low breeding. Avoid crossing the room alone, and never run, even if you feel embarrassed, and wish to cross quickly. If you are a musician, and certain that you will confer pleasure by a display of your talents, do not make a show of reluctance when invited to play or sing. Comply gracefully, and after one piece, leave the instrument. Be careful to avoid the appearance of wishing to be invited, and, above all, never hint that this would be agreeable. If your hostess has requested you to bring your notes, and you are dependent upon them, bring them, and quietly place them on the music stand, or, still better, send them in the afternoon. It is a better plan, if you are called upon frequently to contribute in this way to the evening's amusement, to learn a few pieces so as to play them perfectly well without notes. Never attempt any piece before company, unless you are certain that you can play it without mistake or hesitation. When you have finished your song or piece, rise instantly from the piano stool, as your hostess may wish to invite another guest to take the place. If you have a reason for declining to play, do so decidedly when first invited, and do not change your decision.