Once the candidate leaves, review your interview notes, fill in the structured interview guide (if you used one and if this was not done during the interview), and review the interview while it's fresh in your mind Whether or not note taking during the interview is necessary, by the way, seems to depend on the interviewer's personal preferences. In recent series of three studies, whether or not the interviewers one took notes didn't seem to have much appreciable affect on the valid of the interview, although overall, when note taking was voluntary, the note taker made more valid ratings than did the non-note takers. For those who prefer to take notes the main caveat seems to be to do so in a way that does not interfere with the flow of the interview or lead to recording irrelevant information. emphasis are two common interviewing mistakes. Reviewing the interview shortly after the candidate has left can help you minimize these two problems. Some employers find videotaping interviews can be an effective way to review the top candidates.