The more adept you are at altering your speed, volume and tone to match that of the group you are addressing, the better they will hear and accept what you have to say.
You begin to accept that, for better or worse, the old rules and rewards system is falling apart and the simple equation of exchanging your time and skills for a fixed salary and defined benefits over a 30-year period no longer adds up.
This was good training for a writer, for the sooner youaccept the fact that you are a deluded idiot who is always out of step with reality the better off you will be.