keep (one) on (one's) toes

To force someone to stay active, alert, and focused on something or someone. Having two kids under age five sure keeps me on my toes!

Name	Pronounced	Usage
Alon	ah-LON	Hebrew
Dixie	DIK-see	English
Arnout	-	Dutch
Sonya	SON-yə (English), SAWN-yə (English)	Russian, English
Gordianus	-	Ancient Roman
Pankaj	-	Indian, Hindi, Marathi, Gujarati, Bengali, Punjabi, Nepali