christina hendricks birthday Happy birthday, Christina Hendricks: The best Joan faces from 'Mad Men'In honor of Christina Hendricks’ 39th birthday on Saturday (May 3), Zap2it would like to invite you to look at the “Mad Men” star’s best asset: her wonderfully expressive face.

Eyes up, everyone.

“Mad Men” loves a well-timed reaction shot or pregnant pause, and most of the regular cast is really good at delivering just the right arched eyebrow or withering look. Hendricks’ Joan is right at the top of the list. Enjoy these GIFs of some of Joan’s best reaction shots.

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