Oh yes, I agree with your choice of caption...
I must say, the expressions on this page are all priceless, but this is some Creepy Katara-worthy thing. My personal theory is that in this particular panel, we see Tuuri from Lalli's perspective and the face shows how much Lalli
doesn't want to get in the front.
Please don't tell me I'm not the only person who sees something wrong with this face...