I was thinking about this on the way home about TOUCH and PERSONAL SPACE.
What Soror DSMMI12 mentioned about WEAK HANDSHAKES corresponds with touch. I think people who give weak handshakes are not touchy feely people. There could be more to why they give weak handshakes but that is an underlying one.
In terms of PERSONAL SPACE, I remember in a college sociology class learning that there are cultural differences about acceptable personal space. For instance Black folks are one way and white people are another. It breaks down further for Latinos, Asians, etc.
Personal space is cultural but I also believe it is personal.
I know this might seem random but when I am dancing, I do not look my partner in the face. I was dancing with a guy a couple of weeks ago and he actually asked me why was I not looking @ him. Partly it was because his breath stank

and partly becuase I was not feeling him (CORNBALL) and then again I feel that when you look in someone's eyes in such close quarters, there is a certain intimacy that is involved there.