be coquettish
It is a Chinese idiom, Pinyin is s ā ot ó UN ò ngz ī, which originally refers to dressing up; later it describes a woman showing off her beauty (including derogatory meaning). It comes from the biography of Li Gu in the later Han Dynasty.
The origin of Idioms
In the Southern Dynasty, Song Dynasty, Fan Ye's biography of Li Gu in the book of the later Han Dynasty: "the great journey is at the funeral, and passers-by cover their tears. Gu Du Hu whitewashed his appearance, scratched his head and made a pose, hovered and bowed, and took his steps calmly. He never had a miserable heart
Idiom usage
It has a derogatory meaning.
Examples
I love their simple nature, which neither attracts the bees nor makes a fuss. (the chapter of proud frost by Junqing)
be coquettish
A newborn calf is not afraid of tigers - chū shēng zhī dú bù jù hǔ
build up a nation and make it stable - lì guó ān bāng
there is none under heaven to equal him - dú bù tiān xià