6) Look for increased use of pacifiers. As the interview or conversation continues, you should be observant of pacifying behaviors and/or an increase (spike) in their frequency, particularly when they occur in response to a specific question or piece of information. Such an increase is a clue that something about the question or information has troubled the person pacifying, and that topic likely deserves further attention and focus. It is important to identify correctly the specific stimulus (whether a question, information, or event) that caused the pacifying response; otherwise you might draw the wrong conclusions or move the discussion in the wrong direction. For example, if during an employment interview the candidate starts to ventilate his shirt collar (a pacifier) when asked a certain question about his former position, that specific inquiry has caused sufficient stress that his brain is requiring pacification. This indicates the issue needs to be pursued further. The behavior does not necessarily mean that deception is involved, but simply that the topic is causing the interviewee stress.
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(7) Ask, pause, and observe. Good interviewers, like good con-versationalists, do not machine gun questions by firing one right after the other in a staccato fashion. You will be hard-pressed to detect deception accurately if your impatience or impertinence antagonizes the person with whom you are speaking. Ask a question and then wait to observe all the reactions. Give the interviewee time to think and respond, and build in pregnant pauses to achieve this objective. Also, questions should be crafted in such a way as to elicit specific answers in order to better zero in on facts and fiction. The more specific the question, the more likely you are to elicit precise nonverbals, and now that you have better understanding of the meaning of subconscious actions, the more accurate your assessments will be. In law enforcement interviews, unfortunately, many false confessions have been obtained through sustained staccato-like questioning, which causes high stress and obfuscates nonverbal cues. We now know that innocent people will confess to crimes, and even give written statements, in order to terminate a stressful interview wherein pressure is applied (Kassin, 2006, 207–228). The same holds true for sons, daughters, spouses, friends, and employees when grilled by an overzealous person, be it a parent, husband, wife, companion, or boss.