There are many terms for the person who crafts your cocktail: mixologist, bartender, barkeep. But it's best to just call Julio Cabrera a cantinero, the Cuban term for professional bartender. The word is romantic, conjuring up a sepia-toned image of a gentleman who prides himself on making the perfect drink for his guests at the Regent Cocktail Club. A man who believes that working a bar is a noble profession that requires the skills of historian, scientist, mathematician, chef, and psychologist all in one. Julio Cabrera is all of that and more. This cantinero, in the classic sense of the word, is a master of all trades. When he's not posing for GQ or winning awards such as Most Imaginative Bartender from Bombay Sapphire's national competition, he's conducting pilgrimages to El Floridita Bar in Havana, where another cantinero, Constantino Ribalaigua, made daiquiris for a writer named Ernest Hemingway. "Bartender," "cantinero," whatever you want to call him, the dapper Cabrera is the epitome of what a master of his craft should be: a man who elevates his field by paying tribute to those before him and serving as a mentor to those coming up.