This document discusses the importance of the first two minutes of a class and provides tips for effectively starting a class. It outlines the objectives of heightening understanding of class openings, raising awareness of how the opening can set the culture and foreshadow content, and practicing class openings. It then discusses key considerations for an effective opening, including preparation, goals, engaging the class with a "hook", instructor behavior and communication styles, gauging student reactions, and creating a positive learning community.