Answer:
Read books on etiquette, check out etiquette columns online, and watch those whom you believe to have good manners.
"Please," "Thank You," "You're Welcome" (never "no problem") and a smile will go a long way to begin with. And remember: most good manners are just common sense about how people treat each other. The fancy stuff like which fork to use is easily learned. It's people stuff that matters.
that's right from books and other resources and you also learn them by the people around you like your parents, family, teachers etc.