Civilization requires more of us than the ability to make friends and behave tactfully. We also must perform sophisticated social maneuvers regarding deception, misdirection, legal defense, and informing the public.
Therefore, I’ve appended my 100,000 Tips to include the basics of understanding lying, managing conflicts, and staying clear of legal danger. Beyond that, writing is an unspoken necessity of civilization and public speaking is one of the most useful skills for managing difficult social engagements. Of course, enough experience in anything will bring you to where you will someday teach someone else.