Can shared experience and dialogue on social touch be orchestrated in playful smart public spaces? In smart city public spaces, in which physical and virtual realities are currently merging, new forms of social connections, interfaces and experiences are being explored. Within art practice, such new connections include new forms of affective social communication with additional social and sensorial connections to enable and enhance empathic, intimate experience in playful smart public space. This chapter explores a novel design for shared intimate experience of playful social touch in three orchestrations of 'Saving Face', in different cultural and geographical environments of smart city (semi-) public spaces, in Beijing, Utrecht, Dessau-Berlin. These orchestrations are purposefully designed to create a radically unfamiliar sensory synthesis to disrupt the perception of 'who sees and who is being seen, who touches and who is being touched'. Participants playfully 'touch themselves and feel being touched, to connect with others on a screen'. All three orchestrations show that shared experience and dialogue on social touch can be mediated by playful smart cities technologies in public spaces, but rely on design of mediated, intimate and exposed forms of 'self-touch for social touch', ambivalent relations, exposure of dialogue and hosting.

Can social engagement and reflection be designed through social touch in today's smart city's public spaces? This paper explores ludic, playful design for shared engagement and reflection in public spaces through social touch. In two Artistic Social Labs (ASL), internationally presented in public spaces, a radically unfamiliar sensory synthesis is acquired, for which perception of 'who sees and who is being seen, who touches and who is being touched' is disrupted. Participants playfully 'touch themselves and feel being touched, to connect with others on a screen'. On the basis of the findings in the ASLs, guidelines are proposed for orchestrating social engagement and reflection, through social touch as play.

Can shared intimate experience of social touch be mediated through multibrain-computer interface (Multi-brain BCI) interaction in public space? Two artistic EEG KISS orchestrations, both multi-modal, multi-brain BCIs, are shown to create novel shared experiences of social touch in public space. These orchestrations purposefully disrupt and translate known forms of face-to-face connection and sound, to re-orchestrate unfamiliar sensory syntheses of seeing, hearing, touching and moving, connected to data-visualization and audification of brain activity. The familiar sensory relations between 'who you kiss and who is being kissed, what you see and what you hear' are captured in a model of digital synaesthetics in multi-modal multi brain BCI interaction for social touch. This model links hosted self-disclosure, witnessing, dialogue and reflection to intimate experience in public space through syntheses of the senses. As such, this model facilitates the design of new shared intimate experiences of multi modal multi brain BCI interaction through social touch in public space.

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Is human hosting essential to social touch in the public space of merging realities? This paper explores the role of hosting in art and design for mediating social touch in public space, social robotics, virtual reality and tele-matic environments. The question of whether human hosting is essential to social touch was the focus of three experiments held during performance of artistic orchestrations designed for social touch in public space for which the effects of different hosting designs have been analyzed. These internationally presented orchestrations, Saving Face (2012) and Master Touch (2013), purposefully disrupt and re-orchestrate multi-sensory connections in unfamiliar and unpredictable ways, to evoke shared reflection and shared sense making in public space, mediated by a host.Saving Face was orchestrated internationally in museums, urban public spaces and theatres, including;

Can a multi-sensory model of disruption be designed for shared social touch in public space of merging realities? This paper presents a multi-sensory model for disruption design for shared social touch experience in public space of merging realities. This model is based on analysis of three different artistic orchestrations performed in the public space across the world. In these orchestrations participants' intimate and sensorial experience of social touch is purposefully disrupted and re-orchestrated. These orchestrations are designed to enable participants to feel, see, hear and share a disrupted touch experience, in the social context of the public space. The model provides as frame of reference for designing an experience of shared social touch, for scientists, designers and artists.