What term refers to the outward expression or display of mood or feeling states?

The term that refers to the outward expression or display of mood or feeling states is emotional expression. This concept encompasses the various ways individuals convey their emotions through facial expressions, body language, tone of voice, and other nonverbal cues. Emotional expression is essential for communication, as it allows individuals to share their internal states with others, facilitating social interaction and understanding.

In contrast, affective demeanor might suggest a broader approach to how one's mood is perceived in a social context but does not specifically address the outward expression of emotions. Mood representation could imply a more abstract or conceptual depiction of mood rather than the immediate physical manifestations. Expressive behavior is somewhat related, but it can refer to all kinds of expressions, not purely those of mood or feeling. Therefore, emotional expression is the most precise term that captures the idea of visibly displaying emotions.