Movement plays an increasingly important role in interactive systems design, from users' physical engagement, to how designed artefacts can move or be moved, and to the concert between users and artefacts. Designers, as well as programmers, have to engage more and more in physical activities when they want to create appealing experiences involving movement. There is a need for articulating emerging dialogues between designers, developers, and their materials. We will explore such dialogues in a 2-half-day workshop, focusing on data and its challenges, on tools and methods, on sensing and actuation when designing or detecting subtle body movements, and on catering for bodily changes over time.