DO NOT CONTRADICT.
Never directly contradict anyone. Say, “I beg your pardon, but I think you are mistaken or misinformed,” or some such similar phrase which shall break the weight of direct contradiction. Where the matter is unimportant it is better to let it pass without correction.
EXPRESSING UNFAVORABLE OPINIONS.
You should be exceedingly cautious about expressing an unfavorable opinion relative to a young lady to a young man who appears to be attracted by, and attentive to her. If they should marry, the remembrance of your observations will not be pleasurable to yourself nor the married parties.
A CONVERSATION CHECKED.
If a person checks himself in a conversation, you should not insist on hearing what he intended to say. There is some good reason for checking himself, and it might cause him unpleasant feelings to urge him to carry out his first intentions.
Some of the acts which may be classed as vulgarities when committed in the presence of others are given:
To sit with your back to a person, without asking to be excused.
To stand or sit with the feet wide apart.
To hum, whistle or sing in suppressed tones.
To stand with the arms akimbo; to lounge or yawn, or to do anything which shows disrespect, selfishness or indifference.
To correct inaccuracies in the statements of others, or their modes of speech.
To use profane language, or stronger expression than the occasion justifies.
To chew tobacco and its unnecessary accompaniment, spitting, are vulgar in the extreme.
A gentleman precedes a lady passing through a crowd; ladies precede gentlemen under ordinary circumstances.
Give your children, unless married, their Christian names only, or say “my daughter” or “my son,” in speaking of them to any one except servants.
Ladies in escorting each other, never offer to take the arm.
Acknowledge an invitation to stop with a friend, or any unusual attention without delay.
Never boast of birth, money or friends, or of any superior advantages you may possess.
Never ridicule others, be the object of your ridicule present or absent.
Always show respect for the religious opinions and observances of others, no matter how much they may differ from your own.
You should never scratch your head, pick your teeth, clean your nails or pick your nose in company.
Never lean your head against the wall, as you may disgust your wife or hostess by soiling the paper of her room.
Never slam a door or stamp noisily on entering a room.