It is a human nature to say the candidates how are you? May be the answer is the simplest but carries a lot of weight , the way you reply with gesturer; you will be noticed and that is the impression you will carry in next five to ten minutes during PI.
It is noteworthy that you can mould your voice, improve your gestures or body language and learn how to maintain eye contact. Learning and practicing with extempore speech will help you to be at your best in PI.
Selection panel will give you ample chances to regain lost stance during PI so that you must feel at ease. Their objective is to select the best candidate suitable for Institution and not to reject you.
It is suggested to be sure what you say at PI as you might be asked few questions from your own replies.