What’s the difference between being introverted and being shy? What are extroverts so cheerful about? And does Angela’s social battery ever run out? Take the Big Five inventory: freakonomics.com/bigfive

Is it really that important to make your bed? What’s the benefit of hiring a lazy person? And how many cups of spinach can Mike fit in a red Solo cup? Take the Big Five inventory: freakonomics.com/bigfive