This document provides tips for making a good first impression and cites research supporting each tip. It recommends letting the other person speak first to appear more trustworthy, making eye contact to be perceived as more intelligent, having a firm handshake to enhance positive social interactions, and using a raised vocal tone to signal trustworthiness rather than monotone or deeper tones. The overall message is that small behaviors and nonverbal cues can significantly impact how someone forms a first impression of you.