use your head

US /juːz jʊər hɛd/
UK /juːz jʊər hɛd/
"use your head" picture
1.

gunakan otakmu, berpikir cerdas

to think carefully and intelligently about something, especially to solve a problem

:
Come on, use your head! There must be a simpler way to do this.
Ayolah, gunakan otakmu! Pasti ada cara yang lebih sederhana untuk melakukan ini.
If you would just use your head, you'd realize the answer is obvious.
Jika kamu mau menggunakan otakmu, kamu akan menyadari jawabannya sudah jelas.