Proximity Toolkit is a toolkit that simplifies the exploration of interaction techniques based on proximity and orientations of people, tools, and large digital surfaces. ViconFace is a playful demonstration application built atop of this toolkit. A cartoon face on a large display tracks a person moving around it, where it visually and verbally responds to that person’s proximity, orientation and wand use. The accompanying video illustrates all this in action. General Terms Design Keywords Toolkits, proximity, situated interaction ACM Classification Keywords H.5.2. [Information Interfaces]: User Interfaces — input devices and strategies; interaction styles; prototyping; user-centered design.