"They hold an incredible power to make us feel good and to connect with others" This is very true because Naturally, I find it difficult to approach an individual if he or she is frowning, I will always be like dude smile we are not fighting, are we?
Right!
I think people tend to mirror expressions too. What I mean to say is, when one let's one's burden creep to their face, they end up repelling people around them.
So, I agree strongly with you, I won't approach a person carrying a heavy frown. Because why?