22/06/16 Common ways of introducing strangers

Common ways of introducing strangers to each other are:

• John, do you know Helen? Helen, this is my friend John.
• Sally, I don’t think you’ve met Elaine.
• I don’t think you two know each other, do you?
• Can/May I introduce John Willis? (more formal)

When people are introduced, they usually say How do you do? (formal), Hello, or Hi (very informal). Americans often say How are you? Note that How do you do? is not a question, and the normal reply is How do you do? (It does not mean the same, in British English, as How are you?)
People who are introduced often shake hands.