☛ DO NOT make jokes/insults about the people you have met during your interview.

☛ DO NOT make any demands to lesser staff members (i.e. "Get me a coffee.").

☛ DO NOT say negative things about your previous workplace, your coworkers, or even your friends, family, or the stranger that cut you off on your way to the interview. Employers do not want people that are negative and complain, even for good reason.

☛ DO NOT insult a work strategy employed by the company. You never know if your interviewer was the one that suggested it.