to be careful; to pay attention; to watch out
You should be careful.
Vous devez faire attention avec le verre de vin.
You have to be careful with the wine glass.
I have to be careful.
Nous devons faire attention de ne boire que de l'eau pure.
We must be careful to drink only pure water.
Léon, il faut faire attention avec les femmes.
Leon, you have to be careful with women.
— Léon (1994)
Tu ferais mieux de faire attention.
You better be careful.
Les conducteurs doivent faire attention aux enfants qui traversent la route.
Drivers should be careful of children crossing the road.