The more we can track of ourselves in VR, the more immersive the virtual world will be for us, but the same goes for the other people in any multiplayer or social experiences. Take for instance the fact that players in Hover Junkers can shoot themselves for example. It adds a whole new layer of immersion for other players.
One really important aspect though that could change how socialising in VR works is lip synchronisation. One developer has been working on that aspect and has created something that seems to work reasonably well.
It's not perfect mind you, and there is some lag between what he says and when the lips on the creepy girl avatar move, but it's an important step on making social applications feel more real. Indeed while imperfect, it could be used as it is now, you'd just need to adjust to the fact that there is a slight delay.
It would be interesting to see if a more dedicated microphone set up was used, would it improve the latency? Considering it seems as if the developer in question at this point is just using a standard headset microphone, it's impressive it works as well as it does.
What other small changes to virtual reality do you think could have a big impact on how immersive the whole thing feels?