Extensible MultiModal Annotation (EMMA) provides a common language for communication among system components, enabling plug-and-play of technologies from different vendors and rapid prototyping and iterative development of multimodal interfaces. In this hands-on tutorial, participants will use a cloud-based multimodal server supporting EMMA (AT&T Speech Mashup) and the Deutsche Telekom EMMA implementation to learn how to build multimodal applications with EMMA that incorporate advanced features such as multimodal dialogue confirmation and fusion of multiple input modalities.