How do you say hello in japoneise?

Answer 1

To say GOOD AFTERNOON you would say

konichiwa

To say HOW ARE YOU you would say

o genki desu ka

making GOOD AFTERNOON HOW ARE YOU

konichiwa, o genki desu ka

To say GOOD MORNING you would say

ohiogoziemas

To say GOOD EVENING you would say

Kownbonwa

Those are the polite ways of greeting people in Japanese. Arigato means thank you in japanese.

Answer 2

In Japanese, "hello" is typically said as "konnichiwa" (こんにちは) when greeting someone during the day, or as "ohayou gozaimasu" (おはようございます) in the morning.