NEVER answer a serious question with a joking answer. Pick up on the interviewer's reaction and body language, and cut your answer short if he appears bored or impatient. DON'T be afraid of silence; Once you've closed your mouth, DON'T open it again until asked another question. Nervous people have a tendency to ramble. NOTE: Be aware that an inexperienced interviewer may need help keeping the interview flowing. In this case, avoid embarrassing pauses by asking questions and volunteering information. Try to pick up clues about the interviewer from his office and comments. Anything you can bring up to show commonality and shared interest is all to your advantage. Echoing back, subtly and sincerely, the sentiments expressed by an interviewer at an earlier time can build an excellent rapport.