I know this isn't the Cardinal's point, but wouldn't it be great if, "The Lord be with you," or "The peace of Christ!" were standard greetings, rather than, "Good morning," or "Hey!"
"Viva Cristo Rey!" "Que viva!"
Well, my old roomate, who has half Greek said that on Easter, the greeting is “He is risen!”. Not ‘happy Easter’. And you say it when you answer the phone or see people you know.
In the German-speaking Catholic regions until recently the standard hello was : “Gruess Gott” - “God greet you!” as opposed to the now-standard “Wie geht’s?” or “Guten Tag” (”How’s it going?” “Good day”).