An interviewer will concentrate on many aspects from a candidate's personal appearance to their attire and conduct when deciding who to employ. Personal appearance is not only concerned with attractiveness: an individual hygiene and neatness are just as important. Employers wish to employ those candidates who will give their industry a good public 'face'. You should be aware of this fact, especially while you are attending the interview. You should ensure that you are dressed properly, preferably in a suit and that your hair is properly groomed. Certain things are mandatory for you to consider whilst preparing for a job interview:

* Research the company:
This is a vital task when preparing for a job interview. You may choose to search on the internet to explore the company. You should know these important things about the company:
- Company history, products and its establishment
- Company's growth, its size and branches across world or country
- Current news about the company and any significant developments within the company
- Whether the management team is global or national, company goal, its position in world rank and niche in market.

* Research the position for which you are applying:
Study the job description, and all other contacts you have. The company website will also be helpful here:
- what exactly is expected in the job and what will be your position in company
- comments on the job from people who have worked it
- if there are any modifications to the position at all

* Practice the possible questions concerning yourself:
Think professionally and study your resume well. Record all information regarding your educational achievements and any special qualifications. You will need to prepare answers to the common questions so that you know them by heart.

* Be responsive:
Practice these questions by yourself aloud until you are comfortable with them. Be specific when you are answering and give supportive examples that will satisfy the interviewer. Be positive and speak truthfully: at the same time do not go into detail about any past mistakes.

* Attire for interview:
Be aware of what you are wearing, as your first impression is vital. Wear suitable clothing and have a neat hairstyle. Do not apply strong perfume and heavy make up and minimize the wearing of jewellery. Try to look the part.

* Be ready with questions for the interviewer:
In most of the interviews you will be given a chance to ask questions. You should prepare at least one question. Ask logical questions. Your choice of questions will reveal your inquisitive nature as well as your interest in the company.

* What NOT to ask in interview:
While preparing for a job interview you should be aware of the things you should not discuss with the interviewer. Never directly ask about salary and benefits. You will be informed about these concerns if the company shows an interest in employing you.