Wearable computing will change the current paradigms of human-computer interaction. With heads-up displays, unobtrusive input devices, personal wireless local area networks, and a host of other context sensing and communication tools, wearable computing can provide the user with a portable augmented reality where many aspects of everyday life can be electronically assisted. This paper focuses on several such situations, such as an academic or business conference, classroom note-taking, office communication, maintenance, or a visit to a museum.