If you want a Prohibition-era cocktail without the fussiness and exclusivity of Bourbon & Branch, pop into this stylish upstairs bar in Union Square’s Mystic Hotel. Some of the city’s best bartenders, clad in suspenders and vests, serve up classic and new-age cocktails without a hint of pretention. A film-noir aesthetic provides a sexy, vintage vibe; delicious (and substantial) bar bites add to the lure, and there’s live jazz Thursday through Saturday from 7pm to 10pm.