American character

One does not always address a person by his title, such as "Major" or "General" or "Doctor" in the case of a holder of a Doctor of Philosophy degree. The re­spectful "Sir" is not always used in the northern and western parts of the country. However, it is best to use a person's title when first meeting him/her, and then allow the person to tell you how he/she wishes to be called. They use first names when calling each other, slap on the back, joke and are much freer in their speech, which is more slangy than the conventional British English. You will