Be yourself: Do not try to be someone you are not. The interviewer is an expert of his job and will immediately catch hold of any dishonest statement or action you portray. Do not pretend to be someone you are not.
Dress for the job.
Wear the most formal attire that you would likely need to wear in that position. Show the employer how you could represent their organisation.
Maintain an eye contact: One of the best to project confidence is to maintain an eye contact with the person who is interviewing you. Do not look here and there or up and down for it shows nervousness.
Body language: Most of the communication that we do during an interview is non-verbal. Sit straight. Do not shake your legs or tap your feet in nervousness. Do not fiddle with your hair or rub your hands. After all, the interviewer is also just another human being. He is sure to have some flaws too.
Dress appropriately: Remember, you are going for an interview, not a fancy dress competition or party. Dress smartly and neatly. Do not wear a lot of jewellery. If ladies are wearing a saree, pin it properly. Do not walk in for the interview shabbily. Tuck your hair properly. Do not wear any uncomfortable dress. Wearing formals is always suitable for appearing in an interview.
Know you CV, job and company: Have a firm grasp on your CV, the job you're applying for and the company. Be specific about your achievements and your growth so far. Set examples of events that set you apart from others. Think of a reason why the interviewer should hire you. Give them a reason to choose you. Also, know the company well. You are required to work for them; therefore they expect you to be well-informed of the organisation, its products, services and industry as a whole.
Be aware of your skills, abilities and experiences.
Be able to talk about how you could contribute to the organisation. Show that you believe you can do the job by referring to your skills, abilities and experience.
Be ready to ask relevant questions.
The interview is not only for the employer. The interview is also for you to learn about the position and see if it really is for you. If you are properly prepared, you should generally know about the position and can ask questions relevant to you if your application is successful.
An employer will not be trying to trip you up during the interview.Don't be late for the interview.
Plan your time to arrive early and compose yourself before the interview.
Don't lie about your skills and experience.
Don't post too much on Facebook and other social networking sites.
Employers now use social networking sites to gather information on prospective employees. Be careful what you post.