How to say 'Hello':

Bosnian: Zdravo!
Greek: Geia sas!
Korean: Annyeonghaseyo!
Portuguese: Olá!
Swedish: Hallå!

How to say 'Goodbye':

Bosnian: Zbogom.
Greek: Antío.
Korean: Annyeong.
Portuguese: Adeus.
Swedish: Adjö.