A name for the face

I know there have been previous pictures of "the face" but until now we thought it was just a fluke. Kellan now makes it often and on command. We say to him"Can you make the goofy face"? And does he ever !! Why the name "goofy face", what else would you call it ??

The funniest part is the sound he makes with the face, its a snorty thru the nose sound.