How can I trigger the screensaver on my Mac?
If you don't want to use Expose, there's another option:
On Sierra or lower, the screensaver is actually an application located at:
/System/Library/Frameworks/ScreenSaver.framework/Versions/A/Resources/ScreenSaverEngine.app
On High Sierra it is located at:
/System/Library/CoreServices/ScreenSaverEngine.app/Contents/MacOS/ScreenSaverEngine
You can just make an alias/shortcut to this app, drag the shortcut into your dock or wherever you want it and when you want the screensaver you can just launch the app.
Settings -> Expose and Spaces -> Expose -> Acive Screen Corners -> Pick one of the corners and choose Start Screen Saver.
I chose top left and set a password for my mac so whenever someone is around and I need to step away I simply slide my mouse to the top left and bam..screensaver innocently starts hehe :D
You can also make an app in Automator.
- Open a new workflow. Choose "Application"
- Browse to "Utilities" in the "Actions" pane
- Drag the "Start Screen Saver" action to the workflow window on the right
- Choose "Save As", name it "start screensaver", file format is "Application"
- Save it in your applications folder
The bonus to this is that you can launch it via Spotlight just by using the spotlight shortcut and typing "scree" for it to appear