One thing to note is that presence within vr is greatly enhanced with access to hand tracking.
One can experience this with a variety of controllers available on the market.
Both Oculus and HTV Vive have fully tracked hand controllers, but these are essentialy 6 dimensionally tracked left and right individual game pads. Google has a controller that goes along with its mobile vr platform daydream, but this is not fully positionally tracked.
Then there is Leap Motion
A device that acts as a three dimensional depth scanning device that can track hands naturaly. It can at present only be attached to computer based vr.
This can be used in alt space to offer a much greater range of expression and the ability to interact and collaborate within the virtual spaces with other people.