A series of site and situation specific artworks made since 1993 which use electronic media are examined with particular reference to the role of the viewer in the choreography, realisation and interpretation of the work. The artworks are examined both in terms of their relative progression and in particular in relation to a series of research questions. The artworks discussed include works made for a range of locations, all of which have specific viewer expectations attached to them. This includes work located entirely in public spaces (Woolwich Foot Tunnel 1993 and Pedestrian Gestures 1994); works made for the Gallery context (AudioZone 1994, Touched 1996); In Conversation 1997/8 which existed both in public (physical) and public (online) space, and Cruisin' 1999 which exists entirely online. In the first part of the thesis each artwork becomes a case study in pursuit of these questions, with both documentary and anecdotal observation and evidence. The second part of the thesis consists of an excerpt of writing from a self generating (programmed) dialogue, which I have called Inhabited Text, a writing structure developed in order to contextualise and write about the work in a form intended to reflect the nature of the work itself, Inhabited Text seeks to examine and question the recording of encounters with interactive works, through its own dialogic structure, and also through an online version to encourage its own encounters.