In western countries, many titles are used. 2 Men are usually called Mister. 3 Women can have different titles. 4 A woman can choose her title. 5 If shemarried, she can call herself Mrs. or Ms. 6 Ifwomanunmarried, she can call herself Miss or Ms. 7 So when do we use Sir or Madam? 8 They are often usedformal letters. 9 Sometimes we hear people call others Sir or Madam. 0 Yes. They are formal termsvery polite. So how do we know whenuse them? 2 Well, if you do know people, you can use those terms. 3 Itconsidered too polite. 4 Some people would think so, but do worry about it. 5 Most people do mind if you guess.