Thank you cherryfizz for making this gif.
Stashed in: gifs, Reaction GIFs!, @iamlaceychabert, High Quality gifs, @cherryfizzy
From the cherryfizz album of awesome high quality Mean Girls gifs: http://imgur.com/a/ot0nG
A few more favorites are here:
Inglorious Basterds Soshanna Awkward Speechless gif
Everything changed when the Fire Nation attacked itself.
Nina Dobrev shrug and smile gif