The Etiquette of Opera Gloves
Traditionally, opera gloves should not be put on in public, but should be donned in the privacy of one's home before going out. Your gloves should be kept on when shaking hands (e.g., in a reception line) or when dancing.
Gloves may also be worn while drinking, though care must be exercised not to spill liquids on them, especially when the gloves are made of kidskin or some other delicate leather. It is better to remove, or partially remove them, when practicable.
When you sit down to dinner, you should take off your gloves, and put them back on when dinner is over.
If you remove your opera gloves, you should not take them off in a way that calls undue or seductive attention to the process (unless, of course, you are attempting to seduce the viewer!)
You can partially remove your opera gloves in this fashion: unbutton the mousquetaire wrist opening and pull your hand out through the opening. The empty glove hand can then be rolled up neatly to wrist level, either tucked under the wrist or under your bracelet, if you are wearing bracelets.
The basic rule as to length of gloves may be defined as follows: the shorter the sleeve, the longer the glove. Opera gloves are, therefore, properly worn with sleeveless or short-sleeved dresses or strapless, sleeveless (with straps) or short-sleeved evening gowns.

