High Sierra and "Hey Siri"
Evening,
I've recently upgraded from El Capitan to High Sierra (never have the latest ... Mojo or whatever it is called)
But I felt high Sierra would handy with Siri.
The symbol is there top right and in the Dock, and clicking it, it will listen and respond to commands, but I if I just say "Hey Siri" when screen is on, it does not start up (like it does on my iphone)
I checked the Sys Pref "Siri" and it is all enabled plus no parental controls.
Am I missing something ?
iMac, macOS High Sierra (10.13.6), +Ipad Air; ITouch; Classic; Iph6