It is a widespread and firm belief among guests that their departure is always a matter of distress to their hosts, and that in order to indicate that they have been pleasantly entertained, they must demonstrate an extreme unwillingness to allow the entertainment to conclude. This is not necessarily true.
Judith MartinYou don't want to look too chic at a Washington party or people will think you don't have a job worth losing.
Judith Martinthe obligation to express gratitude deepens with procrastination. The longer you wait, the more effusive must be the thanks.
Judith Martin