>>318052906
>walking and turning by doing so in real life
That KAT Walk C treadmill that got Kickstarted a few months back is shipping out to early backers now, should be interesting to see how well that works.
>flipping people off without knuckle controllers or animations
You can hack something together with a leap motion if you're desperate, although it doesn't look like it'd work well with anything that needs buttons.
https://www.youtube.com/watch?v=ExMlQ7-teek
https://github.com/SDraw/driver_leap
>smiling at people without gesture overrides
The Vive has a mouth tracking addon, and Neos already supports it.
I think Decagear is supposed to have something like this built in too [spoiler]if it actually releases[/spoiler], hopefully that's a sign that this stuff will be more common going forward.
https://www.youtube.com/watch?v=ukKHVYwzZRA