Ever feel like it’s hard to fit in? Brooke Stone shares a powerful lesson she learned in high school—popularity and kindness are NOT the same thing. A study showed that the most popular kids and the most liked kids were completely different people. When Brooke decided to “kill people with kindness”, she left high school with more friends than she could count. So forget about being “cool”—focus on being kind. It’s the real key to building friendships that actually matter.