This document provides an Italian language lesson on greetings. It begins by explaining that in Italy, as in the US, greetings vary depending on the time of day and whether you want to be informal or polite. It then provides a chart showing common informal and formal greetings for arriving and leaving at different times. The lesson also explains the difference between the informal "tu" and the polite "Lei" when addressing someone. It includes examples of greeting people in images and instructs students to complete a self-test and exercises in their textbook to practice what they learned.