In this Business English lesson plan for adults, students watch a video and do a listening exercise about the basics of business etiquette. It includes discussion questions and conversation activities about business and professional etiquette. Students learn some important vocabulary terms and phrases from the video. The post-viewing section includes activities on vocabulary context usage, parts of speech and prefixes, and rewriting sentences. The grammar activity features defining clauses with the conjunction "although". There are additional speaking tasks included, as well as a quiz and review section with a bonus activity.