it's his
It's payday!
— The Garden of Sinners, film 5 : Spirale contradictoire (2008)
C'est son premier jour à Wall Street.
It's his first day on Wall Street.
— Le Loup de Wall Street (2013)
S'il veut se faire arrêter, c'est son droit.
If he wants to get himself arrested, that's his right.
— Paddington 2 (2017)
Faire semblant d'être surpris, c'est son truc.
Pretending to be surprised is kind of his thing.