Here are my entries for the Perceptual Challenge submitted a few Wednesday's ago. To add more value to the Show&Tell, I thought I’d also include my lessons learned while making each of these apps.
My workflow in Unity is based on exposing properties such as openness, confidence, worldPosition, etc., as public getters -- keeping just one script that has access to the SDK as an “interface” (call it IntelPerC.cs). Each Update(), scripts that utilize gesture interface input would poll the corresponding getter in IntelPerC.cs. The notes below beginning with PerC explain which input data is used from the Intel Perceptual Camera SDK.