Fort Greene Park, Brooklyn Last week Oxford Dictionary declared the “face with tears of joy” emoji as the 2015 word of the year. Etymologists are weeping, because emojis are not really words. However they are icons and they have become a new way to express tone over text communication when there is no body and no inflection of voice. For those of you who read my earlier piece, “Achilles Heel,” I am returning to that work with some fresh insights. In that piece I was writing about the experience of having a heel injury and how it makes you vulnerable to other injuries including emotional ones. Recently I was sitting in…