That an invitation to spend a few days with a friend requires a speedy
reply. It is not allowable to say one will come either earlier or later
than the time specified.
A visitor should adapt herself to the ways of the household, be punctual
at meals, and make no plans or arrangements without consulting her
hostess.
She may not invite a friend of her own to a meal without requesting
permission of her hostess.
She should be careful not to infringe upon the privileges and prerogatives
of the man of the house.