Today, I'm going to tell you guys how to say "Hello" in Japanese

When you meet a person during daytime, you can use this word, "Kon-nichi-wa."
Japanese people love to shorten words, so you may hear people use words like,
"Chiwa", "Konchiwa", "Chiwassu."
But these sound kind of stupid, so be careful using them.
At morning, people say "Ohayou."
This is "good morning."
When you say this to teachers, older people, or people who you don't really know about, you better use "Ohayou-gozaimasu."
This shows your respect towards a person.
And, when you see people at night time, you say "Kon-ban-wa."
This means "Good evening" and if you want to say "good night" before you or a person go to bed, you say "Oyasumi-nasai."
This is like,"have a nice sleep."
These are very useful Japanese to remember.
If you have a Japanese friend, try use it