A SAMPLE OF REGENCY...                  MANNERS
Health is the mother of beauty, decency her governess, taste and judgment her attendants.
...we totally disapprove, at all time, of the much ornamented stocking.   ...the finest rounded ancles are most effectually shown by wearing a silk stocking
without any clock.
...a diversity of colours bespeaks vulgarity of taste,...
..the occasional use of rouge may be tolerated...only tolerated.
Cheerfulness is becoming to all times of life, but sportiveness belongs to youth alone;...
...your dress...should correspond with the station you hold in society.
Excess is always bad.
At no time ought she (a lady) volunteer shaking hands with a male acquaintance,...
Let their attitude at the piano, or the harp, be easy and graceful.
Women in every country have a greater influence than men chose to confess.
All quotes above from "Regency Etiquette: The Mirror of Graces (1811) or
The English Lady's Costume" by a Lady of Distinction  Reprinted by R. L. Shep Publications California
Following are some of the "Miseries of Social Life" from the book "The Miseries of Human Life" published in 1806 by James Beresford
"At a dance, pointing out to your beautiful partner, the ludicrous vulgarity of a man who, she blushingly informs you, is her brother."
"In a very polite circle--the convulsive and portentous termination of your well-modulated titter in an involuntary short snort."
"Blushing in man may be a weakness, but in woman it is peculiarly engaging."
"Never suffer any one, under the pretence of friendship, to take unbecoming liberties with you."
"An elegant neatness is the strongest proof of taste and delicacy."
"The character of a toad-eater, flatterer, or sycophant is truly detestable;..."
From Etiquette and the Usages of Society by Charles William Day
"Hearing the bells ring for the marriage of your rival."
"Diffidently entering a full room, every chair occupied, and no one standing to keep you company."
"Etiquette is the barrier which society draws around itself as a protection. (It is) a shield against the intrusion of the impertinent, the improper, and the vulgar."
"Remember that if you are quiet in society you will, at least, have credit for discretion."
"Nothing indicates a well-bred man more than a proper mode of eating his dinner."
"Never allow a person above the rank of a shopman to leave the room without your ringing the bell for the street door to be opened."
From The Female Instructor or Young Woman's Guide to Domestic Happiness
Do not pride yourself on doing "steps neatly," unless you are ambitious of being taken for a dancing-master; between whose motions and those of a gentleman there is a great difference.
In speaking to ladies of title, do not say "my lady," it being only proper for servants and tradespeople so to do; you may occasionally say "your ladyship," as it shows that you are aware of their claim to the distinction.
Gambling...

"To lose without any exhibition of ill-humour, and to win without any symptom of exultation, are deemed characteristic of high breeding and savoir vivre, and those who cannot always remember this, would do well to give up play."
...dance quietly; do not kick and caper about, nor sway your body to and fro; dance only from the hips downwards...
Women should never play except for trifling sums, and not even then, unless they can retain the command of their temper; she who wishes to win a heart, or to retain one, should never permit her admirers to behold her at cards, as the anxiety they produce is as destructive to beauty as to sentiment.
Never use the term 'genteel'. Do not speak of 'genteel people'; it is a low estimate of good-breeding, used only by vulgar persons, and from their lips implies that union of finery, flippancy , and affectation, often found in those but one remove from 'hewers of wood and drawers of water.' Substitute' well-bred person,' 'manners of a gentlewoman', or of 'a gentleman', instead.