1. Be detailed in your explanation but do not talk things which are not asked.
2. Speak sensible, mature and rational. Make sure what you say do not contradict with your PIQ form.
3. Speaking is an art, whatever you speak give proper, gestures and emotions as necessary in your speech.
4. Making eye contact during the personal interview is very important.
5. Hesitation at the time of answering will cause a bad impression, never tell lies and give a full explanation of your family, friends, education, current life, future scope, and with an example for each.