The crossword solution for the term 'NUDGE, Perhaps' is KNEE. Nudging is a concept in behavioral science, economics, and political science that suggests positive reinforcement and indirect suggestions as ways to influence the behavior and decision making of groups or individuals. It has been used to try to achieve non-forced compliance with goals, policies, and social norms. The term 'NUDGE' was coined by Richard Thaler and Cass Sunstein in their 2008 book NUDGE: Improving Decisions About Health, Wealth, and Happiness.