Switzerland's greetings?

In Zurich it's "Greuzi", in Bern it's "Grusse". Swiss people can tell where each other are from just by how they pronounce it.

Was that your question at all?

It is not greuzi it is "Gr眉ezi", but we have many dialects(accents), like "Griessach"

With close friends and family you could say "hi" by pronouncing it "Hoy". (Rhymes with soy...) But this is a very
informal greeting. I used it with my close Swiss friends while
I lived there. But in the Zurich area, with strangers or co-workers, I used Gruetzi or guten tag (good day) or guten abend (good evening), guten nacht (good night). etc.

Just depend where in Switzerland
3 languages (official) German, French and Italian.

So what is your question???

Depending on the language, people greet differently. In Switzerland, where it borders with Germany, they greet in German, and the same where it borders with the other two countries. I live in Geneva and here you would greet in French (Bonjour) and kiss three times, alternating cheeks. I hope this helps!