An American greeting is a phrase or salutation used to greet someone in the United States. The most common American greeting is 'HELLO, ' but other popular greetings include 'HI, ' 'HEY, ' and 'what's up?' The Hawaiian greeting 'ALOHA' is also an American greeting, which is derived from the Hawaiian word for 'HELLO' or 'GOODBYE.' ALOHA is often used as a friendly greeting among friends and family, and it can also be used to express love and affection.