A mature, prosperous crowd seeks out the quiet Ritz Bar in the Ritz-Carlton, adjacent to the semi-legendary Café de Paris restaurant. Anyone can take advantage of the tranquil room and the professionalism of its staff, but because the atmosphere is rather formal, most men will be more at ease with a jacket. Piano music flutters softly around conversation during cocktail hour Monday through Friday 5 to 8pm and at dinnertime (5-11pm) from September to mid-May. The bar is just off the hotel lobby, to the right.