Social Cues and Interaction: Humans are social beings, and we are naturally wired to respond to social cues. When an avatar exhibits human-like facial expressions, gestures, and movements, it triggers social responses in the observer. We are inclined to respond to entities that seem to engage with us in a familiar social manner.

Empathy and Emotional Connection: Human-like avatars, especially those with realistic facial expressions and emotions, can evoke a sense of empathy in people. The ability to recognize and interpret emotions in an avatar can lead to a stronger emotional connection, similar to how we connect with other humans based on their emotional expressions.

Biological Predisposition: Evolutionary factors might play a role in our response to human-like avatars. Throughout our evolution, being able to recognize and respond to other human-like entities has likely been advantageous for survival and social cohesion. This predisposition may carry over to our response to artificial entities.

Mirror Neurons: Mirror neurons in the brain are neurons that fire both when an individual performs an action and when they observe someone else performing the same action. This mirroring effect could contribute to the sense of connection and understanding when interacting with human-like avatars.

Familiarity and Comfort: Human-like avatars can provide a sense of familiarity and comfort, making it easier for people to engage with them. This is because we are accustomed to interacting with other humans and often feel more at ease when the interaction resembles a familiar human-to-human encounter