Physical proximity of another person

Details:

In these definitions of presence technology is explicitly not involved; the phenomenon is an objective property of a person or people; and the aspect of the phenonenon that is of primary interest is related to social entities (usually humans), specifically their physical proximity.

Sample defintion(s):

Biocca, Harms, & Burgoon (2003):
"Non-definitional, binary formulations of social presence... In these studies of unmediated interactions, social presence is treated as self-evident: the other simply is or is not present. (Soussignan and Schaal, 1996; Huguet, Galvaing et al., 1999)"