I often wondered why Cavemen and other Neolithic tribes painted on cave walls and rock faces maybe now I have one reason.
They were men and us men are useless at talking... but very good at using our hands so we tend to let our hands do the talking but this seldom has the required result when it comes to communicating with the fairer sex.
Our paintings and handiwork is not understood by our soulmates, they would much rather have us say in words what we do not say but say in handiwork or other artifacts we bring back to the cave.
Men also do not need to say a lot when together with other men... It probably harks back to the days of hunting Mammoth... one had to be pretty quite around those critters or they would stampede and squash any hunters! Hand signals and bird calls probably conveyed what was needed to execute the task at hand.
We men have not mastered the use of language at all, there have been exceptions however, politicians and writers spring to mind. Neither do we feel the need to express our feelings either, lest we give the quarry an inkling of our intent. I really need to work on this language thing before I leave the cave again to go grab that woman by the hair.
"The most important thing in communication is to hear what isn't being said." Peter Drucker (1909 - 2005)