Which factor does NOT indicate someone might be armed and dangerous?

The factor that indicates someone might not be armed and dangerous is a friendly demeanor. When an individual exhibits a friendly demeanor, it suggests open and non-aggressive behavior, making it less likely that they pose a threat. This contrasts sharply with other behaviors such as bulges in clothing, which could indicate concealed weapons, or being in a high-crime area, which may increase the likelihood of encountering individuals who are armed and dangerous. Similarly, nervous or agitated behavior can sometimes be associated with individuals who may not be acting in a non-threatening manner. Therefore, a friendly demeanor is a clear indication of a person who is likely not a threat.