In the Marine Corps, Air Force, and Coast Guard, instructors are also addressed as sir or ma'am. Overly extensive use of these terms isn’t necessary. In the Army and Navy, drill instructors are commonly addressed by using their military rank and their last name. In Marine Corps basic training, avoid using personal pronouns such as "you," "I," or "we". Instead, speak in the third person.
When reporting to an officer in his office, the soldier should remove his headgear, knock, and enter when given the okay. They proceed within two steps of the officer’s desk. Then they stop, salute, and report. The salute is sustained until the report is completed, and the salute has been returned. After the work is completed, the soldier salutes, and holds the salute until it has been returned. They then execute the appropriate facing movement, and depart. The procedure is the same when reporting indoors, under arms, except the headgear is not removed and the soldier delivers the salute authorized for the weapon with which he is