How to say hello and goodbye in Japanese

Hello and Goodbye are obviously part of polite expressions needed to interact with Japanese, for example, during a trip to Japan.

I suggest you make a point in this article.

To say "hello" in Japanese, used :

• Ohayo (gozaimasu) おはよう (ござい ます) : good morning (politely) 
• Konnichiwa こんにちは : hello, pronounced "kon'nitchiwa" 
• Konbanwa こんばんは : good evening 
• Ossu / yo おっす / よ : hello friends, rather masculine 
• Hajimemashite はじめまして : for a first meeting - If someone comes and tells you Hajimemashite はじめまして, you just have to answer the same expression
• Douzo yoroshiku どうぞよろしく : This term is often used with Hajimemashite はじめまして during presentations
• Tadaima modorimashita ただいま戻りました : when you get home - then responds  O-kaerinasai おかえりなさ : Welcome back
• (O) Hisashiburi (desu ne) - (お) 久しぶり (です ね) : it's been a long time (politely)

To say "goodbye" in Japanese, used :

• Sayonara さようなら : goodbye
• bye-bye バイバイ : for younger 
• Mataashita/ raishū/ raigetsu/ rainen また明日 / 来週 / 来月 / 来年 : tomorrow / week / month / next year 
• Itte kimasu いっ て き ます : when you leave the house - it then responds: Itte rasshai : いっ て らっしゃい 
• Oyasumi (Nasai) おやすみ (なさい) : good night (politely)