To participate in collaborations with people, robots must not only see and talk with people but also make use of the conventions of conversation and of the means to be connected to their human counterparts. This chapter reports on initial research on engagement in human-human interaction and applications to stationary robots interacting with humans in hosting activities.
Sidner, C. L., & Dzikovska, M. (2005). A First Experiment in Engagement for Human-Robot Interaction in Hosting Activities (pp. 55–76). https://doi.org/10.1007/1-4020-3933-6_3