I'm 5'4" and over the decades I've noticed occasionally that tall people think I'm smiling or happy when I'm not. The white boxes on the faces in the article ob

I'm 5'4" and over the decades I've noticed occasionally that tall people think I'm smiling or happy when I'm not. The white boxes on the faces in the article obscure this but the girl appears to be frowning when her head is tilted up and smiling when it is tilted down. This is the natural result of end sides of the mouth curving back toward the cheeks. This is what I first thought of when I read the headline and was surprised it wasn't mentioned in the article or other comments here.