Very large interactive wall displays do not lend themselves to use with traditional interaction modalities such as mice and keyboards. It is necessary that we develop new interaction methods better suited to such systems. We have taken a bodycentric approach in developing such techniques, where the body itself is used for input, and an on-screen shadow representation of the body is employed for feedback. We describe completed work focusing on the shadow aspect of the proposed method, as well as currently ongoing work exploring the gestural input aspects. Categories and Subject Descriptors H.5.3 [Information Interfaces And Presentation]: Input devices and strategies. General Terms Human Factors Keywords Interaction techniques, large wall displays, shadows, whole body interaction.