Siri on your Mac
You can activate Siri with your voice on your MacBook Pro and use Siri for many tasks. For example, you can schedule meetings, change preferences, get answers, send messages, place calls, and add items to your calendar. Use Siri to give you directions (“How do I get home from here?”), provide information (“How high is Mount Whitney?”), perform basic tasks (“Create a new grocery list”), and much more.
If you enable the “Listen for ‘Hey Siri’” option in Siri preferences, Siri is available whenever you say “Hey Siri” and immediately speak your request.
Note: To use Siri, your Mac must be connected to the internet. Siri may not be available in all languages or in all areas, and features may vary by area.
Enable and activate Siri. Open System Preferences, click Siri, and set options. If you enabled Siri during setup, on the 13-inch MacBook Pro, tap the Siri button 
in the Control Strip on the Touch Bar or press and hold Command-Space bar to open Siri. On the 14-inch or 16-inch MacBook Pro, press and hold the Dictation/Siri (F5) key 
to open Siri. Or click Siri in System Preferences, then select Enable Ask Siri. You can set other preferences in the Siri pane, such as the language and voice to use and whether to show Siri in the menu bar.
Tip: You can add the Siri icon to the menu bar by selecting that option in the Siri pane of System Preferences. Then click the Siri icon to use Siri.
Hey Siri. On your MacBook Pro, you can simply say “Hey Siri” to get responses to your requests. To enable this feature in the Siri pane of System Preferences, click “Listen for ‘Hey Siri’,” then speak several Siri commands when prompted.
For convenience, “Hey Siri” doesn’t respond when the lid to your MacBook Pro is closed. If the lid is closed and connected to an external display, you can still activate Siri from the icon in the menu bar.
Tip: To learn about more ways you can use Siri, ask “What can you do?” at any time, or see the Apple Support article What can I ask Siri?.
Play some music. Just say “Play some music,” and Siri does the rest. You can even tell Siri, “Play the top song from March 1991.”
Drag and drop. Drag and drop images and locations from the Siri window into an email, text message, or document. You can also copy and paste text.
Change the voice. Click Siri in System Preferences, then choose an option from the Siri Voice menu.
Throughout this guide, you’ll find suggestions for things you can use Siri for—they look like this:
Ask Siri. Say something like:
“Open the Keynote presentation I was working on last night”
“What time is it in Paris?”
Learn more. See the Apple Support article How to use Siri on your Mac.