Eye contact provides social information to the person you are listening to and talking to. Too much eye contact and you could be seen as aggressive, and too little eye contact and you can be seen as having no interest in the person speaking. It is an often overlooked skill and yet critical to effective communication.
https://ipsnews.net/business/2020/10/02/revision-customer-reviews-dont-buy-until-read-this-user-experience/

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