The document lists 9 things to avoid saying in a job interview. These include asking about perks or benefits, not knowing what the company does, complaining about a previous boss or job, commenting on the interviewer's appearance, complaining about physical discomfort, saying you were fired without explanation, saying you just want any job, saying "I don't know" to questions, and claiming your biggest weakness is that you work too hard. The document advises researching the company beforehand, focusing on positives from previous roles, and thoughtfully answering questions about weaknesses or hypothetical situations.