This document summarizes an HCI session that took place on March 24th, 2014 at KU Leuven in Belgium. The session discussed developing digital prototypes using tools like Balsamiq, Origami, and AppGyver. It also covered testing prototypes "in the wild" with users, achieving virality to recruit more users, conducting user testing through methods like questionnaires and analytics, and iterating the design based on test results. The document outlines plans to release a digital prototype by April 28th and demo it at a demo fest on May 19th.