I also understand and want you readers to understand that Swiss German dialects are primarily spoken and do not really have one set way of writing things, since the majority of the time everyone writes in High German. There is not an "official" swiss german dictionary out there to my knowledge, though there are books out there on various dialects. Though a lot of my friends do write to each other on facebook and such in their various dialects with various spellings and abbreviations for things, so I am sorry if the way I write the following is not the same way that someone else writes it.
That being said, there are way too many ways to greet people, in bern or in switzerland in general haha. To give an example a difference between dialects this is a great way to show it.
In Zürich one of the main ways to say hello would be, Grüezi.
But in Bernese Oberland, you would hear more of Grüessech.
This would be considered the same thing as saying guten Tag, meaning good day, in German.
For some alternate greetings there are the following.
SINGLUAR:
guete Morge - good morning
guete Tag - good day
gueten Aabe - good evening
uf Widerluege - goodbye, farewell
guet Nacht - good night
adjeu - goodbye
grüess di - hello (informal, used during the day)
tschou - hello
hallo - hello
sälü - hello
hoi - hello
The way that I understand it, is generally if you were to greet more than one person, you would add mitenand to the end of the greeting. Therefore saying grüessech mitenand, which is guten Tag allerseits in german, meaning like hello everybody, literally translating to something like good day on all sides in english.*
*(If you are on first name terms with someone, it may be more appropriate to use grüssech zäme instead, or tschou zäme. Zäme literally means together. In german this would be zusammen. Again, translating into hello everyone. )
