Contact : This one has contact to me because it is showing more intense emotion. You would look at this image and go "whats wrong?" or thats so sad. It displays a lot of energy. it zeros you in and makes you begin to question whats going on.
No contact: This one has no contact because he has a blank stare. There is nothing going on in this picture. It doesn't really draw you in. Not a lot of energy going in this picture. And also it doesnt cause you to question "whats going on" in this picture.