The most awkward scene in the most recent episode of Game of Thrones, "No One," involved Tyrion (Peter Dinklage) trying to get killjoys Missandei (Nathalie Emmanuel) and Grey Worm (Jacob Anderson) to loosen up with some wine and laughter.

Looking to escape the boredom of waiting for Dany's return, Tyrion asked Missandei and Grey Worm if they knew any jokes. Missandei responded with a total bomb about some translators, while Grey Worm asked something to the effect of, "What is a joke?" while stern-faced because he's an Unsullied and there's little joy to having your privates lopped off and trained to kill your entire life.

But in real life, actor Anderson does know how to have a laugh, and co-star Emilia Clarke caught him on video goofing off with Dinklage while waiting to shoot a scene. (Warning: Some very un-Khaleesi-like language from Clarke.)

So that's what Grey Worm's smile looks like!

Game of Thrones airs Sunday nights at 9c on HBO.