The Actor’s hands

“All the world’s a stage, and all the men and women merely players”. Can we counter-argument to the Swan of the Avon? definitely not. Therefore, let’s learn from the good players how to make our hour upon the stage.
Have a look at the theatrical gestures of most-lamented Italian actor Vittorio Gassman (photos recently found, and published by “La Repubblica). How many marketeers could claim to be more expressive and effective, without saying a word? How many lawyers would give five years of life to become capable of convincing, influencing, communicating their cases without depending on their speech only?