There are a number of ways, like in most languages, depending on the situation.
Päivää or Terve [informal, common] Moi or Hei or Moikka.
[formal] Hyvää päivää
Hello in Fijian is Bula (informal greeting) Bula Vinaka (formal greeting)
first you put the calculator upside down then you type .113h then it will say helllo but there is no 0
helllo
It meand Bonjour.
helllo
helllo
salam helllo
helllo
Helllo
You don't say anything in Finland, but you can say stuff in Finnish. Anyways, "hi" in Finnish is "hei".
helllo evrybody
helllo my name is billy blundell i go to lipson