Hours of Arrival and Departure.
An evening party usually begins about nine P. M. It is supposed to end about midnight unless the devotees prefer to remain later. Some who do not care for this amusement retire immediately after supper.
When to leave at a ball is a very elastic rule which varies to suit the circumstances of the case. To leave as soon after supper as may be or to stay until the ball is actually over, are equally correct courses to follow. Half past one is a very good time to depart. Here in this busy country where the gallants of the evening will be the business men of the morrow, earlier hours are usual than among the leisure classes of the Old World.
In retiring from a large party it is sufficient to bow politely when expressing the pleasure you have received. And if the hostess or host offer the hand, shake it cordially, but not too roughly.
An after call is required the same as after a ball or dinner party.