In this ESL lesson plan for adults and teens, students watch a video and do a listening exercise on a scene from the TV series, 'Friends', when Ross puts on too much teeth whitener. It includes discussion questions, conversation, and other activities about teeth and dating. Students learn some important vocabulary words, phrases, and expressions from the video. The grammar activity features the usage of the second conditional. There is a pronunciation exercise as well for students to practice intonation. A quiz and review with a bonus activity is included.