I'm salivating
Xi á NLI ǎ NT á ngy ǎ n, a Chinese idiom, means to describe frivolity. From the rainbow.
explain
A smiley face; a frivolous face.
source
Mao Dun's Rainbow: "like a guard, Ms. Mei always has four or five evil youths around her."
I'm salivating
sharp eyes and agile hands or nimble fingers - yǎn jí shǒu kuài