During an interview, knowledge, confidence, interpersonal skills, ability, and desire to work hard are tested. In addition to this, your physical appearance and a good and clear way of communication would also be of good usage for the interview. Preparation for an interview should revolve around all of these factors and try and aim at improving them.

The questions that are typically asked are about recent developments and events in the field of the job. This can be researched via magazines and the internet. Get in touch with friends who have a job in this field to exchange information and knowledge with them and make sure that you know as much as you possibly can. This way you can also ask them about any interviews that they have experiences and get insight in to what types of questions may be asked.

However, prior to that, the knowledge about the basic subject that you have learnt during your training and education is very important. Even if you got very good marks on something, make sure you review it so that you are still as knowledgeable about that particular area.

During an interview, when you answer one question the interviewer may ask a cross-question on your answer. For answering this, you have to think very quickly. Practicing can help you deal with this. You should practice self-interviews several days before the interview. During this, you can practice such question and answers. If you search the market, you may find a guide or some book containing the questions related to your field. These would be of great benefit to you. Alternatively, they are also available online.

You should practice until you can fluently answer these questions one after other. Try not to delay when giving an answer, but do not jump in too fast. Practice with a friend or family member so you can prepare for the actual situation of someone asking you questions. This would not only practice the answers to the questions but it would also be helpful for gaining confidence in order to answer them to others.

However, as knowledge is considered to be important for the interview, so are confidence and interpersonal skills. For gaining confidence, you may orally practice the questions and answers that are generally asked for an interview. Practicing out loud would help well. This would also improve your voice and make you more comfortable for giving the answers. This would help you for speaking with comfort in front of many people.

The interpersonal skills are very crucial for working at any place. Skills for dealing with other people are necessary in any job, and for interviews.

The interviewers also are influenced by your physical presence. Moreover, make sure you display some patience and tenderness in your behavior. Most of the time the interviewer will also check whether the applicant gets easily angry or misbehaves when he loses his patience, etc.