While she did say that she had no emotions, maybe being in a physical human form might be forming some emotions as well. It was always new to see someone like Light to give his respects to her, given that she is the vessel of Kami. "I'm certain that you will win against this detective. It would not be your first time with a challenge such as this," Madeline said with her monotone voice, but a hint of recognition and acknowledge could be seen in her otherwise blank eyes. While the first time around with this praise from the shinigami king, Madeline expected it this time, and thus she was not as surprised as last time.