keep a weather eye open

An instruction to monitor someone or something, often because the person or thing in question may turn out to be dangerous. I think Tom's a thief, so keep a weather eye open around him. I'd keep a weather eye open with this storm that's brewing—we may have to evacuate.

Common Names:

Name	Pronounced	Usage
SevİL	-	Turkish
Hylda	HIL-də	English (Rare)
Ingeburg	ING-e-buwrk (German)	German, Ancient Germanic
Imamu	-	Eastern African, Swahili
Anabela	-	Portuguese
Aintza	-	Basque