Ideas about how to make interaction between 'a human' and 'a computer' such
that our unconscious will embrace it are developed in this tutorial paper.
Evidence of impact of the unconscious functioning is presented. The unconscious
is characterised as being a responsive, contextual, and autonomous participant
of human-computer interaction. Unconscious participation occurs independently
of one's cognitive and educational levels and, if ignored, leads to learning
inefficiencies and compulsive behaviours, illustrations of which are provided.
Three practical approaches to a study of subjective user experience are
explored together with new interpretations of the current usability study
methods, such as eye-tracking. Conclusions consider advantages and
disadvantages of unconscious-embracing design and remind about evolutionary
choices to be made as the unconscious functioning is accommodated in computer
interfaces and built environment.