debes estar atento

Y dime, ¿no hubo nadie que te dijera que debes estar atento y debes escucharlo?

And tell me, was there no one who told you that you need to pay attention and listen to him?

— Pinocho (2019)

Debes estar atento a los enemigos.

You need to watch out for enemies.

— Avatar: El sentido del agua (2022)

Debes estar atento.

You must be alert.

— Dolor y gloria (2019)

Hasta ese día, debes estar atento y vigilarla.

Until that day, you must be attentive and keep an eye on her.

— Ne Zha (2019)

Debes estar atento de los carteristas.

You must be on the lookout for pickpockets.