Politeness is indeed a crucial social skill that can greatly contribute to your success during a job interview. One aspect of politeness is to knock on the door before entering, as a way to respect the other person's space and privacy. Additionally, maintaining a friendly demeanor and smiling throughout the conversation can create a positive atmosphere and make a favorable impression on the interviewer. Remember, good manners and politeness can go a long way in leaving a lasting positive impression during an interview.