“Dancing With the Stars” hoofer Karina Smirnoff turned heads at Haven Rooftop in a tight black minidress. When a fotog approached, she stood and struck provocative poses from her Broadway show “Forever Tango.” During dinner, a spy reports, Smirnoff’s friend and manager, Lindsay Reilly, revealed the pair is penning a relationship book together that will cover their “past failures, successes and lessons learned as single girls.” Smirnoff left a doodled self-portrait and note that said, “I was here, KS.”