Currently, when it comes to mobile virtual assistant, we can mention Apple's Siri, Google Now and Cortana Microsoft. Technically, this will be the personal assistant voice-control nature of the users with the ability to extremely useful and interesting. Recently, the site has PhoneBuff for testing and posting video clips of 50's ability to turn every "she" Cortana assistant, Siri and Google Now. Invite you to see it this fun experience.

The first is Microsoft's Cotarna

Go to Apple's Siri

And finally, Google's Google Now

Refer to Gizmodo, PhoneBuff