This document provides a list of useful expressions and questions to use at a party. It includes greetings like "Hi, how are you?" and "Hello". It also lists questions to get to know people better such as "Are you having a good time?", "How do you know the host?", and "What do you do with yourself?". The document also includes compliments like "You look great tonight" and ways to express surprise like "Really?!" or "No way!".