Playing a game of catch with your audience and never throwing an errant ball into the ground or over their heads. That's good communication. https://www.youtube.com/watch?v=hOr_dzRByWM
The four point star of communication are: Inform 2. Elucidate 3. Entertain 4. Move people for an action. I fill that in in seven minutes below. https://www.youtube.com/watch?v=sh1S9f9Go1c
Opportunities, luck and even misfortune and sins are the result of our tongues, so that it is always better to be truthful, direct and candid (aka transparent) by what you communicate to people.
Communication helps a democracy to organize after it has accepted the reality, that it can seek people who can fix problems and for those people with specialized skills to distinguish themselves for the chosen work.