Blair Waldorf GIFs

Leighton Meester turns 30 on Saturday, and though Gossip Girl is over, her legacy as Blair Waldorf lives on — primarily in her timeless style and sassy reaction GIFs. Blair's eye rolls are like snowflakes, no two alike; her insults are creatively devastating; and her happiness, when she chooses to let it out, is unparalleled. To celebrate Meester's big day, let's revisit her very best Blair GIFs.