"The courtsey is the proper salutation for a lady before commencing to
   dance, and when entering or leaving a room, or receiving her friends."

"Not only be certain of the figure, but of the tune, in order to keep
       in time.  Partners who dance out of time are carefully avoided."

"When an unpractised dancer makes a mistake, we may apprise
       him of his error; but it would be very impolite to have the air of
    giving him a lesson."

"The master of the ceremonies must take care that every lady dances,
         and press into service for that purpose those young men who are hanging round the room like fossils."