How do I enable "Hey Cortana?

[WPCentral Question]

So I have a Lumia 930 that is fully updated. Cortana works great, but I can't seem to use the active listening feature activated by saying "Hey Cortana." How do I enable that, or use Cortana without pressing the search button?

 

[Rick_Air]

That'll be because they've not released the update that allows that.
I'm afraid you've looked a bit silly talking to your mobile before it can even hear you.

 

[Zulfigar]

That'll be because they've not released the update that allows that.
I'm afraid you've looked a bit silly talking to your mobile before it can even hear you.

What he means by that is Denim hasn't been released yet, only an upgraded version of Cyan. Hopefully though, Denim comes out within the next couple of weeks.