To find proof as to whether he is "in love" or not, Yukimura pats Himuro on the head from point-blank range. Seeing this, Ibarada, an upperclassman in the Ikeda Lab, talks about the need for a control experiment. In other words, in order to prove that the racing of his heart is because of Himuro specifically and not just because he's facing a woman, Yukimura has to pat Kanade and Ibarada on the head too. Himuro, on the other hand, sets out to prove that food made with love tastes better and cooks, but...
Exert every effort in your studies, so 
that you don't become one of them.
.فلتبذلي كلّ جهدك في الدراسة حتى لا تصبحي واحدة منهم
Widme dich ganz deinen Studien,
damit du nicht einer von ihnen wirst.
Dedica todo tu esfuerzo para no ser así.
Dedica todo tu esfuerzo para no ser así.
Ne recule devant aucun effort.
Impegnati al massimo negli studi,
così da non diventare una di loro.
Esforce-se para não ser assim.
Так что приложи к своей работе 
все усилия.