be (as) quiet as a mouse

To be silent and meek. I just can't believe that Kate actually yelled at Mike—she's as quiet as a mouse! I always tell my young son that he needs to be quiet as a mouse during the church service.

Common Names:

Name	Pronounced	Usage
Gerlinde	ger-LIN-də (German), kher-LIN-də (Dutch)	German, Dutch
Lamprecht	LAHMP-rekht (German)	German (Archaic), Ancient Germanic
Jaslyn	JAZ-lin	English (Rare)
Coral	KAWR-əl (English)	English, Spanish
Duff	[dʌf]
Gaylord	GAY-lord	English