Here are some helpful tips:Interviews are opportunities for you to know the employer and for the employer to get to know you.
Research the role and the organisation
Print an extra copy of your résumé.
Run through your experience, skills and interests; and how it can fit the job and the organisation
Anticipate questions you might be asked, then prepare answers to these questions; rehearse in front of a mirror. Refer to Interviewing Techniques
Prepare questions that you would want to ask the employer