The document provides tips on how to be a good salesperson, noting that convincing others is a form of selling and that anyone can sell with the right attributes. It recommends having knowledge of and belief in the product, understanding customer needs, strong communication skills, and continually improving skills like completing additional certifications or trainings. The document advocates adding new skills to make oneself a more attractive candidate, using the example of job applications to illustrate choosing a candidate with more experience and qualifications.