Over the past 18 years, Colin Field has made the Hemingway Bar of the Ritz Paris the city's pre-eminent watering hole. More than a bartender, Mr. Field is a host with a knack for sparking conversation between his guests and approaches drink-making with the detailed eye of a tailor, often sizing up a customer's personality and mood to create a made-to-measure cocktail. Considered by many to be one of Paris's best bartenders, he will soon become the town's most sought-after one as the Ritz prepares to shut down for a two-year renovation on April 16.

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