Trinity Pub

Friendly barkeeps will ask your name (and remember it the next time you drop by) at this pocket-size Irish pub, where one of the city’s creamiest pints of Guinness is served at the proper temperature in a tulip glass. The brick-walled space fills up quickly, but the Upper East Side frat-pack mercifully stays away. If loitering at the bar isn’t your thing, get behind it: Regulars sign up in droves for Thursday’s guest-bartender stint.