Examples
“I actually think the decline in manners is more worrisome, because a lot of moral behavior is grounded in good manners.”
“The word manners comes from the Latin _manus_, the hand, and literally means the mode in which a thing is handled -- behavior, deportment.”
“She has just which I call the manners a young lady ought to have. ”
“The uniform stability of their manners is the natural consequence of the imperfection of their faculties.”
“Their language bears no affinity to the idioms of the Continent: in the habits of domestic life, they are not easily distinguished from their neighbors of France: but the most singular circumstance of their manners is their disregard of conjugal honor and of female chastity.”
“Trying to insist on my parochial conception of "manners" is actually pretty bizarre.”
“In contrast, Scieszka's story allows children to challenge conventions by finding the absurdity in manners, rules, and even language itself.”
“What often seems like rudeness and inconsiderate behavior, a lack of respect for other people, even dangerous driving habits, or poor quality workmanship all stem from a lack of upbringing and education in manners, foresight, and anticipating and avoiding problems.”
“And, in fact, behind Mansueto's quiet Midwestern manners is one of the nation's boldest entrepreneurs.”
“Unrepentant liar, astroturfer, lacking in manners, plausible link to radical left-wing activist: if I was going to create someone designed to discredit health care rationing supporters, the result would look just like Roxana Mayer.”
‘Doctor’ at Jackson-Lee town hall: lying, and defensive about it. - Moe_Lane’s blog - RedState
Lists
These user-created lists contain the word ‘manners’.
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Words related to knowledge
Words that relate to learning, knowing, being enlightened...
revelation, eureka, awakening, idea, sapient, astute, canny, intelligent, wise, sharp, shrewd, informed and 467 more...
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Society
social work, coverage, affiliate, social security, ambulance, clinic, health, insurance, emergency, mail, letter, envelope and 101 more...
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Describing People
eye, hair, mouth, nose, tooth, head, face, arm, hand, finger, lip, leg and 212 more...
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Pluralia Tantum
Nouns that are common in plural form but are non-existent or rarely used in singular form.
scissors, thanks, clothes, remains, tights, trousers, pants, news, billiards, means, mathematics, physics and 221 more...
Tweets
Looking for tweets for manners.

PossibleUnderscore The great secret, Eliza, is not having bad manners or good manners or any other particular sort of manners, but having the same mannr for all human souls. In short, behaving as if you were in Heaven, where there are no third-class carriages, and one soul is as good as another.
-Pygmalion, George Bernard Shaw Aug 3, 2009