PH
During a comfortable conversation, people may begin matching each other's posture, gestures, E×ρréššions, or speaking patterns without noticing. This phenomenon is sometimes called the chameleon effect. It can occur automatically and is associated with smoother social interaction.
Friends and couples may even develop similar conversational rhythms over time. No one has to intentionally imitate the other person. Human connection can literally change the way people move and speak.
© Journal of Personality and Social Psychology