* Hallo (Mostly used while answering a phone call, or message) |pronounced hah-loow
* Hei - Hi | pronounced hey
* Heisann - Hi There(informal, used usually when speaking to kids)| pronounced hey-sun
* God Dag - Good Day
* Hai/Hoi - Hi (Slang)
* Hellu (A cuter way of saying hello)
* Helluen (cuter way of saying Hellu, but some people may find it odd)
Thanks for the learning experience and welcome to the nuthouse!