For those nights when you simply need your cocktails delivered in an antique belljar, delivered in a haze of pine-scented smoke, Purl is your sanctuary. Book out a sofa cave for an intimate night with friends, then mingle at the bar when Fitzrovia's staple producers, casting agents, and limelight hopefuls come out to unwind. Be sure to order the high-concept concoctions early on (think Apertif in a Bag: "Pampero Especial, Amaro del Capo, Aperol infused with liquorice root" wrapped up in a plastic sack). There's an otherworldly, exotic glamor to Purl that taps into the undiluted spirit of London nightlife.