Cartoon in Punch magazine: 28 July 1920
Politeness is the practical application of good manners or etiquette so as not to offend others and to put them at ease. It is a culturally defined phenomenon, and therefore what is considered polite in one culture can sometimes be quite rude or simply eccentric in another cultural context.
While the goal of politeness is to refrain from behaving in an offensive way so as not to offend others, and to make all people feel relaxed and comfortable with one another, these culturally defined standards at times may be broken within the context of personal boundaries – this is known as positive politeness.