[Well, Kaworu finds Shinji-kun's flopping around to be delightful and very supportive. He reaches out to give the lizard a good stroke on the head.

Shinji-kun remains rather motionless.]

I see. So it's a phrase that has two meanings. [He thinks about this. The biggest issue is probably his lack of life experience and only hearing of certain things second-hand.]

The phrases that humans come up with to mean other things are so curious. When I came back, Teacher said I was "under the weather" to mean that I was ill even though I hadn't gone outside.