Here is a short video that is not at all produced by some so called expert, but rather just explored by a rather curious normal guy. He does a pretty good job of explaining things in common every day simple ways of communication.
This is not 'my take'... if anyone has any further commentary or does have a position on it please post below.
This is not 'my take'... if anyone has any further commentary or does have a position on it please post below.