What body language could show an interviewee's attempt to withhold details during an investigation?

Darting eyes can indicate an interviewee's attempt to withhold information during an investigation as this behavior often reflects anxiety or discomfort when answering questions. When a person avoids eye contact or frequently shifts their gaze, it can suggest that they are either not being truthful or are struggling to disclose certain details.

In contrast, nodding frequently usually conveys agreement or understanding and does not indicate an intention to withhold information. A calm demeanor often suggests confidence and openness, which is contrary to the idea of withholding information. Open hands are commonly associated with honesty and a willingness to communicate freely, further reinforcing the notion that a person exhibiting this behavior is likely not trying to conceal information.