Prior to Interview
Make sure you receive all of the interview details ahead of time (address, names, attire, etc).
Be sure to arrive 15-20 minutes before the designated interview time with a copy of your resume.
Be prepared for the interview. Research the company and their history. Come to the interview with questions regarding the company, the position, and the environment.
Turn your phone OFF. Vibrate isn't good enough.
Dress professionally!! Be sure to clarify the proper attire for the interview, especially if it is "business casual" as it may mean different things to different people. A suit is always a smart move, and is typically acceptable for both men and women.
During the Interview
Relax. Treat the interview as a conversation with the manager. You are also interviewing the manager to see if the company and position are the right fit for you.
Show confidence in yourself. Sit up straight and make eye contact with the manager that is speaking.
Be able to answer or explain, in depth, exactly what you have on your resume.
Avoid negatives and focus on your skills and why they make you a good candidate for the job.
Be sure to ask questions about culture, environment, company goals, and the day-to-day.
After the Interview
Thank the manager for their time and the opportunity to speak with them. Reiterate your interest in the position and your excitement to have the opportunity to work with them.
DON'T send that tweet! No matter how badly you may want to post to social media after the interview, do not share the details of your interview online as your interviewer may check.
Follow up with a thank you note to the manager(s) for their time and briefly describe how you would be an added asset for their company. Hand written is always best.