I’ve been reading this book about body language:
http://www.amazon.com/Power-Body-Language-Tonya-Reiman/dp/1416559019
The author talks about certain signals that we all seem preprogrammed to send and receive. Yet, many of us don’t really seem to interpret these signals correctly when we see them. Animals don’t have any problems with this, yet we do.
It occurred to me that we may have become de-sensitized to normal body language because of our exposure to actors who exaggerate their motions for effect. How many movies with actors who deliver extra strength body language signals would we need to see before the normal volume signals around us seem muted? Our exposure to these “loud” signals may “deafen” our “hearing.”