What is an example of a non-verbal cue indicating aggression?

Clenched fists or aggressive posture effectively represent non-verbal cues indicating aggression because they communicate hostility or readiness for confrontation without the use of words. This type of body language is often interpreted as a warning sign to others, reflecting pent-up tension or readiness to act defensively or offensively. Unlike calm gestures or relaxed body language, which convey peacefulness or openness, clenched fists signify a high level of emotional intensity and stress. Thus, recognizing these signs is crucial in assessing potential conflicts or threats in interactions.