This document provides greetings and leave-taking expressions in English along with examples of their use. It begins by outlining the competencies covered, which include identifying functions, text structures, and language elements for interpersonal interactions involving greetings, farewells, thanking, and apologizing. Common greeting expressions like "Hello" and "Good afternoon" are defined along with appropriate response expressions. Rules for using greetings depending on time of day are explained. The document concludes with sample conversations demonstrating greetings and leave-takings.