keep a lookout for
US /kiːp ə ˈlʊk.aʊt fɔːr/
UK /kiːp ə ˈlʊk.aʊt fɔːr/

1.
göz kulak olmak, dikkat etmek
to watch carefully for someone or something, especially to prevent danger or to find something specific
:
•
Please keep a lookout for the delivery truck.
Lütfen teslimat kamyonuna göz kulak olun.
•
We need to keep a lookout for any suspicious activity.
Herhangi bir şüpheli faaliyete göz kulak olmalıyız.