The secret of Dolly Levi’s success is revealed at the top of Hello, Dolly!’s unstoppable title song. The number is usually recalled as a paean to the star, sung by the adoring waiters of the ritzy Harmonia Gardens Restaurant as she descends a staircase in triumph and a bright red dress. But it begins, tellingly, with Dolly singing to them: “Hello, Harry / Well, hello, Louie…” It’s been years since her last visit, but she remembers them all and greets them by name. No wonder they love her. She makes them feel loved.