We often assume that certain behaviors or preferences signal intelligence but in many cases those assumptions are misleading. In this video we explore 20 everyday habits that many people believe show smarts but which might actually indicate the opposite. We discuss why relying on luck, impressing people with big words, memorizing trivia, insisting on a degree or corporate job, or constantly offering unsolicited advice may reflect overconfidence rather than critical thinking. We examine why equating wealth or musical taste with intellect can be deceptive and how repeating opinions without openness or shouting past people does not equal wisdom. This is not about judging but about encouraging reflection on how we think and communicate. If you’ve ever believed that a diploma or a flashy vocabulary proved intelligence this video may make you rethink what really shows mental strength and awareness.