" And why did so many of the British politicians who met with Hitler misread him so badly? Because Hitler was mismatched as well. Remember Chamberlain’s remark about how Hitler greeted him with a double-handed handshake, which Chamberlain believed Hitler reserved for people he liked and trusted? For many of us, a warm and enthusiastic handshake does mean that we feel warm and enthusiastic about the person we’re meeting. But not Hitler. He’s the dishonest person who acts honest. "

― Malcolm Gladwell , Talking to Strangers: What We Should Know About the People We Don’t Know