People rely on implicit interaction in their everyday interactions with one another to exchange
queries offers responses and feedback without explicit communication. A look with the eyes
a wave of the hand the lift of the door handle-small moves can do a lot to enable joint action
with elegance and economy. This work puts forward a theory that these implicit patterns of
interaction with one another drive our expectations of how we should interact with devices. I
introduce the Implicit Interaction Framework as a tool to map out interaction trajectories and
we use these trajectories to better understand the interactions transpiring around us. By
analyzing everyday implicit interactions for patterns and tactics designers of interactive
devices can better understand how to design interactions that work or to remedy interactions
that fail. This book looks at the smart automatic and interactive devices that increasingly
permeate our everyday lives-doors switches whiteboards-and provides a close reading of how we
interact with them. These vignettes add to the growing body of research targeted at teasing out
the factors at play in our interactions. I take a look at current research which indicates
that our reactions to interactions are social even if the entities we are interacting with are
not human. These research insights are applied to allow us to refine and improve interactive
devices so that they work better in the context of our day-to-day lives. Finally this book
looks to the future and outlines considerations that need to be taken into account in
prototyping and validating devices that employ implicit interaction. Table of Contents:
Acknowledgments Introduction The Theory and Framework for Implicit Interaction Opening
the Door to Interaction Light and Dark: Patterns in Interaction Action and Reaction: The
Interaction Design Factory Driving into the Future Together Bibliography Author Biography
