KATE Hudson is on the wagon. “I love my glass of wine. I love tequila,” said the seductive star, who’s gone off the booze for a film role in which she plays a terminally ill woman in love with her doctor. “To be in New York for two weeks and not have one beverage, I’m not sure I’ve ever done that,” she told British Elle. She also dashed reports of an engagement with Alex Rodriguez, saying the mystery ring spotted on her finger was actually on her right hand.