Ricky Martin was seen partying with a group of friends Saturday night at Love Hate Lounge. Martin happily signed autographs and posed for pix--except for one. "I even told him I bought tickets to his concert next month and he still wouldn't allow me to take a picture with him. That aside, he was really nice." Said another onlooker, "He looked really fit and has to be the most approachable celebrity in town."