Carnegie's most practical lesson is also the most often quoted: there are six specific things anyone can do to make people genuinely like them. None of them require money, talent, or status. All of them require attention. 1. Become genuinely interested in other people. Not performed interest — real curiosity. Ask about their lives, their work, their families. Remember what they told you and follow up. People can tell the difference between someone who is asking questions to seem polite and someone who actually wants to know. Theodore Roosevelt, Carnegie notes, was beloved by everyone who worked for him, from cooks to stable hands, because he remembered their names and the details of their lives. He studied them. 2. Smile. Simple and underestimated. A real smile — not forced — costs nothing and signals warmth, openness, and safety. Carnegie quotes William James: action seems to follow feeling, but really action and feeling go together. If you act as if you feel better, you often do. 3. Remember names. A person's name is, to that person, the sweetest sound in any language. Napoleon III made it a point to remember the name of every person he met, no matter how brief the encounter. Leaders who are terrible with names often compensate by being excellent at everything else — but even then, people notice. Using someone's name tells them: I see you. You are not interchangeable. 4. Be a good listener. Encourage others to talk about themselves. Most people you meet are far more interested in their own lives than yours. This is not a flaw — it is how humans are wired. Use it. Ask good questions. Let them talk. You will learn something useful, and they will remember you as a fascinating conversationalist — because you let them talk. 5. Talk in terms of the other person's interests. Find out what they love and lead with that. Theodore Roosevelt always did his homework before any meeting: he researched the person's passions so he could meet them there. 6. Make the other person feel important — and do it sincerely. Not flattery. Genuine recognition of their worth. Every single person you meet believes they matter. Acknowledge it.