Wherever Gina Chersevani goes, cocktail fanatics follow. The owner of Buffalo & Bergen and partner in Hank’s Oyster Bar on the Hill is both a people person and master mixologist, with a deep knowledge of spirits and techniques. Not to mention that the self-dubbed “mixtress” has been among the pioneers in D.C.’s cocktail scene. As a bartender at 15 Ria more than a decade ago, Chersevani was using fresh-squeezed juices in her cocktails when few other bars were. She made her own sodas before it was trendy. And at Hank’s, she’s literally on the cutting edge, with hand-carved block ice for her drinks on the rocks.