“'Bartending is one of the last professions that still has a mystique,' Singleton, who is widely known as 'Smiley' and has been at it for 19 years. A teetotaler himself, he describes his regulars as 'very sophisticated, interesting people, who are extremely knowledgeable about the world. I learn a lot from them, and they learn a lot from me. I’ve been known to give lectures from behind the bar.' In keeping with the restaurant’s Southern flavor, Singleton’s most common request is for Margaritas, but there isn’t a cocktail, no matter what you call it, that throws him. 'There are basically four, maybe five, drinks, and everything else is just a variation on the theme.