Keep an eye on somebody/something

Pro Tip 1/3

The phrase implies continuous attention and watchfulness over a period.

Can you keep an eye on the pot to make sure it doesn't boil over?

Pro Tip 2/3

It's a figurative expression meaning to be attentive, not to literally watch something non-stop.

I'll keep an eye on the news for any updates about the event.

Pro Tip 3/3

Using this phrase often suggests that there might be a risk or issue to be aware of.

Keep an eye on your belongings in crowded areas to avoid theft.