https://www.theverge.com/2018/5/3/17316028/google-assistant-wear-os-watches

Google’s smartwatch platform, Wear OS, is getting several updates that should make interacting with Google Assistant more convenient with watches using the platform.

Smart suggestions will soon be integrated, so when you ask Google Assistant a question, it will automatically populate an array of follow-up questions that are contextual to the conversation. If you asked about the day’s weather, for example, Google Assistant will return that information, and then suggest other inquiries, like tomorrow’s weather, which can be tapped on.