wrinkle your forehead
The Italian phrase 'corrugare la fronte' is used to express the act of wrinkling one's forehead, often as a sign of confusion, disapproval, or deep thought. It is a physical gesture that can be used to convey a range of emotions or thoughts without the need for words.
When he read the letter, he began to furrow his brow.
This statement is talking about a person who, while reading a letter, began to display a look of concentration or confusion. The act of furrowing the brow is often an indicator of these feelings.
Furrowing the brow is a common reaction to confusion.
This statement asserts that furrowing of the brow is a frequent physical response when a person is feeling confused about something. This expression emphasises on the non-verbal communication.
If you continue to furrow your brow, you will end up getting wrinkles.
This statement is a playful caution or advice to someone, typically indicating that continuous expression of stress or worry can lead to physical signs such as wrinkles. It is a way to tell someone not to worry or overthink too much.