It is 'customary' to hold the door open for someone who is entering a building behind you.
He did the work with his 'customary' efficiency.
She dressed in her 'customary' fashion.
(..) Pardon me. Have you not heard? We hear very little and we understand even less. Two German couriers were found murdered in the unoccupied desert. This is the customary roundup of refugees, liberals... ...and beautiful girls for Mr. Renault, the prefect of police. With these refugees, the scum (..)1942 Casablanca