Nagatoro is still torturing Senpai, laughing at his choice of manga and at how he talks to girls, and trying to get a reaction out of him by having him put her stockings on her.
What are you thinking?
ما الّذي تُفكّر فيه؟
Was denkst du denn?
Ma che sto pensando?
Onde estou com a cabeça?!
О чём я вообще думаю?