How do you say use your head in Portuguese?

There are a few ways to say "use your head" in Portuguese, depending on the context and the desired level of formality:

Formal:

* Use a sua cabeça: This is the most literal translation, meaning "use your head."

* Pense: This means "think" and is more appropriate in formal situations.

* Reflita: This means "reflect" and implies a more thoughtful and analytical approach.

Informal:

* Usa a cabeça: This is the most common and informal way to say "use your head."

* Pensa um pouco: This means "think a little" and implies a need for a bit more thought.

* Bota a cabeça para funcionar: This is a more idiomatic expression meaning "put your head to work" and suggests a need for effort and concentration.

Figurative:

* Use o bom senso: This means "use common sense" and implies a need for practical and logical thinking.

* Seja esperto: This means "be smart" and suggests a need for cleverness and resourcefulness.

The best option for you will depend on the specific situation and the level of formality you wish to convey.