There are many ways to convey threats through nonverbal behavior. Here are some common methods: 1. **Body language**: The threat actor can convey aggression or threat through posture and movement. For example, clenching a fist, pointing at someone, approaching someone, etc. 2. **Facial expressions**: An expression of anger, contempt, or disdain can make the other party feel threatened. For example, frowning, pouting, or a cold gaze can all convey hostility. 3. **Eye contact**: Strong eye contact can show determination and aggression, while avoiding eye contact may imply contempt or disdain for the other party. 4. **Physical contact**: For example, pushing or getting too close, this intrusive behavior can make people feel uncomfortable and threatened. 5. **Use of objects**: Holding weapons or other objects in the hand (for example, knives, hammers, etc.) can directly convey threats, and using objects to make offensive gestures can also increase the sense of threat. 6. **Space occupation**: Standing too close or close to the other party can give the other party a sense of oppression, thereby conveying threats. 7. **Silence and indifference**: Sometimes, a silent attitude and indifferent behavior can convey a threat or dissatisfaction to someone. 8. **Environmental layout**: Intentionally creating an uneasy or oppressive environment, such as dimming the lights, playing low music, etc., can enhance the atmosphere of threat. These non-verbal behaviors can convey complex emotions and intentions in social interactions, and understanding these signals is crucial to identifying potential threats.