with a smile on one's lips
Un homme avec ce sourire aux lèvres est un consommateur heureux !
A man with that smile on his face is a happy customer!
— Chute libre (1993)
Elle s'est remise à avancer vers moi, le sourire aux lèvres.
She started walking toward me again, a smile on her lips.
— Rebecca (1940)
Tom avait le sourire aux lèvres.
Tom had a smile on his face.
Elle parle toujours le sourire aux lèvres.
She always speaks with a smile on her face.