Say Hello to Siri
Want to dictate a note, create a reminder for an important event, turn on Bluetooth, or make a call? Doing any of these things doesn’t have to take more than a single click (and sometimes not even that) when you use Apple’s digital assistant. And unlike with your iPhone or iPad, Siri on the Mac makes it easier for you to multi-task. You can keep doing what you’re doing while Siri completes a job for you.
High Sierra updates Siri’s voices, turns it into your personal Apple Music DJ, let’s you type questions and commands to Siri when you want to keep quiet, and more.
First things first: open System Preferences > Siri and make sure that the Enable Talk to Siri option is selected (Figure 13).