You ever think about what we do on a daily basis. How much of it is informed by what we see presented as normal. For instance, on television, hugs between men always end with a pat on the back. The only time you see a full hug is when the man is breaking down, when the scenario is that he is emotionally overwhelmed. Is it that this is a case of TV portraying society or is it something else. Speaking visually, it is advantageous to have a way to signify emotional turmoil in a way other than crying. So is it that the hug variations come from a need to show visually what is essentially internal, or is it a reflection of society. And if it is a reflection, which is the original image.