The document provides a list of 10 things to avoid saying or thinking in a work environment. Some of the key things included are to avoid saying "I'm not here to make friends" as building relationships is important, to avoid statements like "I could do so much more than this job" as it is important to focus on your current role, and to avoid sending angry emails right away after difficult meetings or situations as it can damage relationships and your career. The overall message is that how you present yourself and your attitude is very important in the workplace.