Seeing as how John Krasinski helped create Jimmy Fallon's AH-Mazing Lip Sync Battle game after playing it at home, we're not surprised Emily Blunt was up for a game when she stopped by The Tonight Show Monday night!
The British beauty swung by the late night show to help promote her new movie The Girl on the Train, and while she was there, the SNL alum got her to play a game of Box of Lies.
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If you've seen the game, you know that not everyone who plays it is great at lying, but Emily sure gave the 42-year-old a run for his money as she did her best to pull one over on the comedian.
Ch-ch-check out the HIGHlarious game (below) and let us know if you think you could fool Fallon!
Make sure to watch The Tonight Show weeknights at 11:35 p.m. EST on NBC!
Tags: emily blunt, game, gifs, highlarious, jimmy fallon, john krasinski, late night tv, nbc, the girl on the train, the tonight show, tv news