The usual-suspect bars we frequent for service from stellar bartenders might not be where you’ll spot them drinking off the clock. They’re probably upstairs at RM Seafood, sipping an amaro straight or letting Nathan Greene and his crew sling “Bartender’s Choice” with premium spirits and super-fresh ingredients. If you want to drink like (and maybe with) a cocktail savant, hit RM’s happy hour for $4 short-rib tacos and a little Hanky Panky—the kind with gin. Mandalay Bay, 632-9300. Daily, 11:30 a.m.-11 p.m.