(one's) bark is worse than (one's) bite

One's actions will not be nearly as severe as his or her words imply. Don't worry about John's threats. His bark is worse than his bite.

Name	Pronounced	Usage
Cosimo	KAW-zee-maw, KO-zi-mo	Italian
Setareh	-	Persian
Harish	-	Indian, Hindi, Marathi, Gujarati, Kannada, Tamil, Telugu, Malayalam
Caiside	-	Ancient Irish
Babs	[bæbz]
Kiro	-	Macedonian