Be sure to give complete answers to questions. A typical answer may take 30 seconds to two minutes to explain. Speak clearly and enthusiastically about your experiences. Listen carefully in order to effectively and appropriately answer the questions being asked and to learn as much as possible about the position. Be positive about prior experiences, employers, former supervisors, college experiences, even your weaknesses.
Silence is okay.
Those pauses may seem longer to you than to the interviewer. A pause before answering a question enables you to organize your thoughts and present a concise answer. If you are unsure about a question, always ask for clarification before answering the question. When you have finished answering a question, stop, don't ramble on endlessly. Watch your body language and nonverbal communication.