She posted the video shortly after Jon Snow got close enough to touch a dragon on the show, which proved that Jon’s secret Targaryen heritage could have practical applications.
Perhaps filming that scene — although obviously without an actual dragon on set — is what inspired Harington to go full dragon.
There’s a lot of adorable in this little clip.
We have Emilia Clarke giggling in a most un-Daenerys way, and we have Kit Harington channeling his inner dragon with a very straight face until he finally breaks at the end.