The key to preparing for a job interview, to making you feel as confident as possible, is to know everything you can about the company, including past history, product or services and potential future of the company. Re-read your application and analyse potential job interview questions you could be asked. It is always a good idea to prepare some of your own questions. This will reflect your interest in the company.
The aim of the interview is to justify how you are suitable for the vacancy and what skills you have to offer. Try to relate your answers to real life experiences and show how you have learnt to overcome problems along the way. Remember to stick to the truth – as they will ask probing questions and you don't want to be caught out!
Always dress smart and ensure you arrive promptly for the interview. Tardiness will not be taken lightly, so ensure you know the precise location. At the interview itself you must be positive about yourself and your abilities and be enthusiastic about yourself, the company and the position you have applied for. Good luck!