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...
then you have someone taste them 
to see which tastes better.
.ثمّ تطلب من احدهم تذوّقهما وتحديد أيهما هو الألذّ
Dann probiert sie jemand und sagt,
welche besser schmeckt.
y sin decir cuál es cuál,
se prueban y se elige.
y sin decir cuál es cuál,
se prueban y se elige.
et les goûter
pour voir lequel est le meilleur !
poi fateli assaggiare a qualcuno
per vedere qual è più buono.
e então alguém come pra dizer
qual é mais gostoso.
предложив субъекту оба блюда на пробу.