I think she looks more scared than anything….

That's an attitude of submission. Could also be terror. Ears down, eyes closed, tail down and not wagging, and trembling…the trembling alone should tell you. That dog's terrified.

why do japanese shows allways have a picture-in-picture of someone laughing?

they really should bring this show to america.

my shiba inu makes a distorted version of that when scratching his neck.

I dunno, the lack of wagging and that strained look suggests he's anticipating for a smack.

I have a Shiba Inu (that's the same breed as in the video) they really do smile and put their ears down when they are happy and when you scratch between their shoulder blades

It looks like the owner trained him to smile! It's a lie!

My dog had a crooked smile

sorta seems like a growl, but when he pets her, doesn't look like she wants to bite him…

yeah.. looks scared..

she looked like she was trying to growl…just saying