What is the sound of one Steve Huffman clapping?

What is on his left hand?  it looks like a chicken.

Haha, it's just his hand. The gif animator used the hand that appeared in the original photo rather than "make" a more realistic hand for him. :)

Here's the original video: The History of Reddit.

Thank you jimlast3 for making this gif:

https://reddit.com/r/HighQualityGifs/comments/3drqzm/rconspiracy_when_ellen_pao_turned_out_to_be_a/

Thank you jimlast3 for remaking this gif:

https://reddit.com/r/HighQualityGifs/comments/3dxue5/remake_steve_huffman_cofounder_reddit_clapping/

Also found in comments here:

https://reddit.com/r/HighQualityGifs/comments/3ew9kt/reddits_reaction_when_the_admins_make_an/

That gif is now here:

http://pandawhale.com/post/65968/spongebob-angry-mob-rabble-rabble-rabble-torches-pitchforks-popcorn-gif