Body language:
The key to success is to work your body in tune with your mouth; positive movements should support positive comments. But how do you make kinesics work for you?

Greetings:
When you first step into the interview room all the attention will be naturally on your face and it is the key point when the interviewer forms an impression about you. So give positive expressions.

Eye contact:
Try to establish an eye contact as early as possible .if you try to avoid eye contact the interviewer may perceive that you are hiding some thing or an element of untrustworthiness.

Face:
Raise your eyebrows slightly upon meeting to draw attention. Your facial expressions can tell many stories. Enter the room with a relaxed smile, this will give a perception of openness and a friendly attitude, and will but both the parties at ease. A tight face or a tensed smile will indicate the inability to handle stress. Frowning will be interpreted as arrogance, while pursed lips indicate secretiveness.

Handshake:
A firm handshake is appropriate and projects confidence. Make eye contact when you shake.

Tips for a perfect handshake
Assure your hands are clean and dry, free of perspiration.

Wait for the interviewer to offer his/her hand. Don't initiate the handshake, this portrays dominance, if you have already initiated don't pull back as it can be perceived as indecisiveness.

When invited for a handshake, offer your hand with your palm to the vertical. Offering your hand with your palm facing down in the handshake portrays submissiveness whereas offering your hand with your palm face coming up in the handshake portrays dominance.

Your handshake should be firm. A limp handshake portrays weakness and lack of confidence, at the same time crushing the interviewers hands portrays dominance.

The handshake last for not more than 3-5 seconds, with a maximum of 6 pumps.

Seating:
Always wait for the interviewer to offer you a seat, if not offered ask. Sitting before the interviewer offers you the seat can give very bad impression overconfidence/arrogance or nervousness.