Passez une bonne soirée, Monsieur !
Bonsoir, monsieur.
The words Good evening miss are translated in French to be bonne miss soir.
To say 'good evening' in French you say 'bonsoir'. This is pronounced as 'bon swor'.
Bonsoir
The question isn't correct. Its supposed to be Good evening son. In french: Bonsoir mon fils.
In the evening, same use as good evening or good night in english
Good evening, sir. Good evening, ma'am. It's just been a lovely evening, but I must go now.
bonsoir
Good evening
If you are talking to one person you should say, "Good evening sir." However if you are talking to more than one person you could say, "Good evening gentlemen."
Bon soir
bonsoir chacun