He was attracted by her smile.
 - Il était attiré par son sourire.
Good morning, said Tom with a smile.
 - « Bonjour », dit Tom avec un sourire.
He grinned broadly at us.
 - Il nous fit un large sourire.
He grinned with delight.
 - Il fit un large sourire de satisfaction.
I saw a joyful smile on his face.
 - Sur son visage, je vis un joyeux sourire.
She always talks with a smile on her lips.
 - Elle parle toujours le sourire aux lèvres.