9.6.3.4 Markers of direct address
Use this domain for words that the speaker uses to refer to the person he is addressing. These words are usually used when you start talking to someone, but can be used during a speech or conversation to refer to the person you are talking to.
Louw Nida Codes:
91D Markers of Direct Address
What words are used when you start talking to someone?
O, sir, ma'am, ladies and gentlemen, men and brothers, (look) you, (listen) all of you