It is common sense that people's inner beliefs may drive their external behavior. If you're attracted to a certain person, you should be more likely to socialize with that person. If you favor a brand of toothpaste, you're more likely to buy it. Of course, our internal thoughts don't always predict our public behavior, but, overall, what we do obviously reflects what we think. But beliefs and behaviors are also related in a more remarkable way. It turns out that the arrow is as likely to point in the reverse direction. As social psychologist David Myers observes, "If social psychology has taught us anything during the last 25 years, it is that we are likely not only to think ourselves into a way of acting but also to act ourselves into a way of thinking."