Yokoi-san is trying to pay attention as usual. And then Seki-kun starts playing shogi next to her and it turns into something rather unexpected.
You act like you're seriously 
considering your next move,
Das ist ja fast, als ob du tatsächlich über
 den nächsten Zug nachdenken würdest.
pensando con seriedad?
pensando tan seriamente?
Comme s’il cherchait 
vraiment quoi jouer…
Sembra che stia seriamente 
considerando la prossima mossa,
Assim até parece que você
está pensando no que fazer,