What are some unusual lessons you learned about earning big tips while working as a waitress/waiter?

Is President Trump’s extraordinary prescience not a manifestation of an intellectual habitus so rarefied that conventional political prognostication appears comparatively jejune?
What are some practical tips for leading a retail team without resorting to cheesy motivational speeches?
Are New Yorkers being too forgiving of Mayor Zohran Mamdani in light of his fast rate of filling potholes?