I can't get the article at the moment, but will comment that not everyone has equal experience or comfort with face-to-face communication, what Stephen Porges calls the "social engagement mechanism". Some people can feel intimidated by the gaze of others.
The foundation of American improv theater came out of socializing games developed by Neva Boyd at Hull House in Chicago and her student Viola Spolin, published in Spolin's book, Improvisation for the Theater. These games rely on attuning to the faces of others and what they say and do. One's spontaneous, untutored reactions are the source of creativity and fun.
I will testify here that the social engagement practices in improv games have done more for me in being able to spontaneously respond and connect with others than decades of (otherwise valuable) therapy and growth practices.
Thanks for sharing this insight!
Computer Science majors at Northeastern University had a required theater class called "The Eloquent Presenter" when I was there that largely consisted of improv games. Some students dreaded it, but my cohort was largely fun and very low anxiety compared to the other required courses.
There was one exercise in particular that broke people, sometimes to tears. The class sat along the wall with the professor sitting at the far end from a door that the student being examined would enter through. That student would walk toward the center of the room, stop, and present themselves to the class, "Hi my name is X". The professor would then critique the subtle mannerisms of the person - their walk was too hasty, they spoke too quietly, they shuffled their feet, etc. The student then walked back out the door and repeated the exercise, until the professor approved their performance.
Some students repeated the introduction a dozen or more times (a few cried at this point), some passed on the first attempt.
I remember many of my classmates hating this process, but the more I reflect the more I believe it was genius to make us experience that extreme social awkwardness. Real life, and I believe real success, exists in the interactions between ourselves and others.