Never sing more than one or two songs consecutively.
CXX.
When at concerts or private parties where music is being performed, never converse, no matter how anxious you may be to do so, or how many persons you may see doing so; and refrain from beating time, humming the airs, applauding, or making ridiculous gestures of admiration.
THE DINNER-TABLE.
CXXI.
Invitations to dinner must of course be answered to the lady. Cards of invitation to a dinner party are usually issued from three days to a fortnight previous to the entertainment; they should specify the hour of meeting. The proper number for such a party is somewhat in dispute: the happy medium may be considered ten.
CXXII.
As persons are necessarily introduced at a dinner party, only such persons as are known to each other, or who mutually desire to be acquainted should be invited, except under the circumstances alluded to in No. I.