A typical user experience these days moves seamlessly between smartphones, tablets, laptops, and even smart TVs without us even thinking about it. But what if there is no screen? What if your User Interface is talking to your wrist, or talking to thin air as you walk into a room? Gartner predicts that 30% of all interactions with computers will be done with your voice by 2020. I'm a big believer in standards-based solutions, and this talk focuses on W3C standards like the Web Speech API (both SpeechSynthesis and SpeechRecognition), SSML (Speech Synthesis Markup Language) and JSGL (JSpeech Grammar Language). These are all free and open source technologies that you can take advantage of in your web browser today. In this talk, Scott Davis (Principal Engineer at ThoughtWorks) helps break down what Conversational UIs are, and how you can adopt them in your application.