This chapter reflects on contexts of contemporary urbanism, and on artistic experiments with perspective and sensory perception, to develop a concept of ambient awareness as a mode of inhabiting mediated cities. Ambient awareness refers to the sensibility that attends to the field by relating elements that are peripheral to each other and organising them into a new form. This chapter argues that large screens constitute a key platform for both the new aesthetic genre of ambient art and the emergence of new forms of public communication. It outlines the concept ‘ambient perspective’ as a means for clarifying: the dynamics of interaction in knowledge production; the sensory processes in play in the casual observer’s reactions to urban screens; and the more general activities of symbolic and cognitive work in the media city.