What do you greet in German when someone gets something new

Question

In my mother language, Hebrew, there is a greeting especially for cases when someone gets or buys something new: תתחדש. Is there something similar in German? If not, what will you say to someone who, for example, just got a haircut or bought a new car?

Answer 1

The usual case in German would be to just say something positive about the new acquaintance like e.g.

"Oh, schöne Frisur hast Du heute." - "Deine neue Frisur steht Dir ausgesprochen gut."
"Das ist aber ein schickes Auto!"

Or we put it in a question:

"Ist die Jacke neu?" - "Warst Du beim Friseur?"

There is not a common expression for this. But we do sometimes hear a proverb in that context:

"Alles neu macht der Mai!"

This is a quote from a traditional song by Adam v. Kamp (1818) but it is a bit outdated and not so widely used.

Answer 2

You probably recognize the new purchase/acquisition with a cheerful question like:

"Neues Auto?", "Neue Frisur?", "Neuer Laptop?", "Neue Frau?"