Presentation expert Gene Zelazny suggests you answer questions using this method:
- Listen to the question
- Write down parts of question (if necessary)
- Pause - take time to think about the question
- Eye-contact - look at the entire audience when answering
- Answer the question asked (OK to say: "I don't know")
Tim Wilson
Professional Speech Coach
Free speaking tips at: http://speakingquicktips.blogspot.com