Below is a video  with Robyn Williams and Koko. There are many forms of communication beneath words.  Lynn McTaggart says:

Robin Williams – connecting in The Field? Lynne McTaggart
This week I got an interesting letter from Aaron Sanders, a reader of mine, about some precognitive ‘messages’ about the sad death of Robin Williams.  It all centers around Robin Williams’s encounter with the famous gorilla Koko, who as you no doubt know, understands and uses American sign language.  If you haven’t seen this video on YouTube, have a look at their magical connection: