Want to hang with L.A.'s cocktail coterie? Head on over to the R&D Bar at Harvard & Stone. As general manager Steven Sué will tell you, the R&D is a bartenders' bar, a place where L.A.'s food and beverage industry comes to hang out. R&D — short for “research and development” — has featured an original cocktail menu every night since Harvard & Stone opened in 2011. On Mondays the place is hopping, with a different guest bartender every week — past participants have included Simon Ford (co-founder of the 86 Company), Dushan Zaric (co-owner of Employees Only and the Macao Trading Company and co-founder of the 86 Company) and Chris Amirault of L.A. hot spot Eveleigh. No set menus here. The bartenders have free rein, designing their own limited (three to five) drink selection, and can hold court at center stage for the evening. 5221 Hollywood Blvd., Los Feliz. (323) 466-6063, harvardandstone.com. —Lesley Jacobs Solmonson

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