6.5 Multimodal prototypes (voice, AR/VR, gesture)

I’m working on a project about [describe your domain/product/idea]. I want to explore multimodal prototypes (voice, gesture, AR/VR). Can you help me with: 1. Suggesting relevant multimodal interactions for my project. 2. Explaining how to quickly prototype them (voice mockups, AR overlays, gesture flows). 3. Highlighting tools to simulate multimodal experiences. 4. Suggesting best practices for testing non-traditional prototypes. Format output as a multimodal prototyping guide.