Watch Maisie Williams Prank Unsuspecting 'Game of Thrones' Fans

And things get weird

If there are two certainties in this world, it's that everyone loves Maisie Williams and hidden camera pranks. So it was a no-brainer to combine the two and ask our May cover girl to take on her toughest acting challenge yet, as the shop clerk at Aero Hobbies in Santa Monica, California.

Wearing an earpiece and taking directions from our team behind the scenes, Williams faced unsuspecting customers who swore they recognized her from that really popular HBO fantasy show, but couldn't quite figure out what she was doing behind that counter. Like the pro she is, Williams didn’t break character once, and instead offered customers free GoT swag from the HBO Shop if they were willing to act out some of the show’s more memorable scenes.

Naturally, utter chaos ensued.