While I blather on about visual thinking, it is important to remember we have bodies. I saw this great quote from Gabriela a while back and have been meaning to share it out. 
Gabriela on Coniecto
How is distributed collaboration affected by the lack of movement and space awareness? People tend to assume that their counterpart works in a similar place, in similar conditions- and this is most of the times false! People tend to guess each other’s reactions in call conferences. People in the same room express through gestures unknown to their counterparts. Is a video channel a solution to this? I don’t think so, although it is very useful in some circumstances.