This Lower East Side staple is a smashing hit among A-list celebs: Diddy, Jay Z, Christina Aguilera, and some of our favorite Project Runway designers can be found munching on salacious sliders meant to share, at this two-story chic dining enclave. The vibe at this dimly lit open-aired restaurant is filled with exciting clamor and ravenous conversation - indicative of, as the name suggests, socializing. And with a famous tapas menu and hip bar upstairs, it's an ideal place to sip dirty martinis as you wait for the next available table. (This restaurant is perpetually booked). Among our menu favorites: onion soup dumplings, and dry-rubbed chipotle shrimp on corn-tomato-feta salad, are positively divine and even better with group of fun-loving friends.