Make a positive and professional first impression by being assertive and giving a firm handshake to each interviewer and addressing each interviewer by name as he or she is introduced.

Reinforce your professionalism and your ability to communicate effectively by speaking clearly and avoiding "uhs", "you knows", and slang.

Make judicious use of time. For e.g. do not dwell too much on your personal qualities that you may not get enough time to tell about your professional qualities, experience, expectations etc.

Use appropriate wording. Use technical terms only when appropriate to the question.

With several people asking questions consecutively, you may not have much time to prepare for a response, therefore, try to read the hidden meaning and try to be measured in your response. Try to be politically correct to be on the safer side and Do not carry your prejudices with you to the interview chamber.