Hah, that's a good one! I haven't seen that one. That's exactly why I insist in being careful on how you use gestures - they need to be very subtle, otherwise you'll look, like you've just said, like a fascist dictator :)

Indeed - the enthusiasm to use body gestures should be limited to a level compatible with the audience.

As the author explained, it depends on the audience culture.

Suggesting a liberated use of body language to a hacker audience may result in many Dwight-like performances...

(good tip - don't stroke the table with your fist closed)

Zuckerberg being a terrible speaker (2010): http://www.youtube.com/watch?v=o3hu3iG8B2g

Zuckerberg being a brilliant speaker (2011): http://www.youtube.com/watch?v=1OQQ4E2k0Mk

Notice how he seems to be more confident and relaxed when he speaks. Unlike in the AllThingsD interview, this time he uses pauses and gestures effectively as well.

Just to be clear, that's not Zuckerberg for the first five minutes in the 2011 video.