XVIII.
If a person whom you have met as specified in Nos. IV. and XI., should presume to salute you, do not recognise the salute, but pass on, and leave him to suppose that you imagined it was intended for another.
XIX.
On meeting a friend in any public place, do not boisterously salute, or proclaim her name aloud.
XX.
It is, in general, bad taste for ladies to kiss each other in the presence of gentlemen, with whom they are but slightly acquainted.
XXI.
It is proper to vary the phraseology of questions concerning another’s health as much as possible, and to abstain from them entirely toward a superior or a person with whom we are but little acquainted, as such inquiries presuppose some degree of intimacy. Custom forbids a lady to make these inquiries of a gentleman, unless he is very ill or aged.