Etiquette for etiquette's sake alone

According to etiquette expert Peggy Post, times change, but manners, which she defines as a “sensitive awareness of the feelings of others,” remain constant. “If you have that awareness, you have good manners, no matter which fork you use.” The rules of etiquette are there to help smooth social interactions, but they aren’t intended to take the place of ‘manners’. That’s why etiquette rules that cease serving smooth social interactions eventually cease to exist.
Find out which etiquette rules should be taught in schools – but aren’t.
A man should stand to greet a woman

It wasn’t all that long ago that it was proper etiquette for a man to stand when greeting a woman entering the room. But today, standing up is correct etiquette whenever anyone greets another person. The body language of standing sends a signal to the person you’re greeting that you’re eager to greet that person, etiquette expert, Maralee McKee explains. Consider it ‘rising to the occasion,’ whatever your gender.
Ladies are served first

Traditional etiquette holds that at a seated meal, women are served first, going clockwise around the table. The men are then served, also going clockwise. But as you may or may not have noticed, the restaurant industry is quietly redefining the etiquette surrounding who gets served first to a more gender-neutral and overall efficient model, reports Eater, and that will likely affect the order of service in private homes as well as in restaurants.
Don’t miss these things polite people don’t do in restaurants.