“…Ambient presence technologies and phatic technologies both have awareness as their core affordance [Vetere et al 2009], trading on a sociotechnical engagement in which awareness shades into connectedness [Dey and De Guzman 2006]. In social presence research, this shading is related to the "threshold of co-presence" [Biocca and Harms 2002, p. 13] -that moment when "automatically and without effort, a thing, technology, is suddenly perceived as somehow being, a mediated other", or rather, following Goffman [1961], two moments "(1) when individuals sense that they are able to perceive others, and (2) when others are able to perceive them" [Biocca and Harms 2002, p. 13].…”