When you are being interviewed it is very important that you give out the right signals. You should always look attentive - so do not slouch in your chair. Never lie to anyone in an interview, your body language and tone of voice or the words you use will probably give you away - classic body language giveaways include scratching your nose and not looking directly at the other person when you are speaking to them.

Always sport a fresh haircut, wear a fresh shirt and your shoes must be polished.

Sit facing the interviewer with your eyes focussed on the main interviewer. Do not cross your legs or put your elbows on the table. Your hands may be placed on the table. Ideally put a piece of paper and pen in front of you to indicate that you are ready.

While answering questions do not look down or sideways. Look at the interviewer straight in the eye. If he shifts his eyes away then finish the answer  fast as he has moved on.

Do not bring your hand to the back of your head or throat. Instead scribble on the paper infront of you to show that you are making important notes.

Do not be aggressive even if the interview is . He is just testing how you react to pressure situations.