According to last year's PUI Workshop proceedings, the goal of Perceptual User Interfaces is to make human-computer interaction more natural and intuitive by integrating perceptual input into the user interface. I would argue that this goal leads to "perceptive" interfaces rather than "perceptual" interfaces. A Perceptive UI is one that pays attention to what the user is physically doing with their body, hands, and face (for example). Multimodal UI is closely related, and takes advantage of natural human communication skills. In particular, we use multiple modalities when we are engaged in face-to-face communication, and this leads to more effective communication. In this talk, I will argue that Perceptual UI builds on Perceptive UI and Multimodal UI, but goes beyond them by leveraging other human capabilities, including perception, cognition, motor skills, and communication skills. The challenge is to broaden our scope and bring all these human capabilities to bear on creating more natural and intuitive interfaces.