Whether you're sending a birthday card, or writing on a friend's Facebook wall, it's good to share.
And you'll want to wish your Japanese-speaking friends "happy birthday" in Japanese, right?
Here are six different ways to share the love.
First of all, let's say Happy Birthday:
1) お誕生日おめでとう！ o-tanjoubi omedetou
Simple and classic, this one means "happy birthday", or literally "congratulations on your birthday".
2) お誕生日おめでとうございます。 o-tanjoubi omedetou gozaimasu
Stick a "gozaimasu" on the end to make it more polite.
Good for people older than you, people you know less well, and definitely good for your boss.
3) ハッピーバースデー！happii baasudee!
This one is actually one of my favourites - a Japan-ified version of the English phrase.
If you're writing a message, it's good to follow up after the birthday greeting by also wishing the person well:
1) 楽しんでください tanoshinde kudasai
e.g. お誕生日おめでとう！楽しんでください ^ ^
"Happy birthday! Have fun :)"
2) 素敵な一日を sutekina ichinichi o
"Have a great day."
"Happy birthday! Have a great day."
3) 素晴らしい１年になりますように subarashii ichinen ni narimasu you ni
"I hope it's a wonderful year for you."
"Happy birthday. I hope you have a wonderful year."
As you may have noticed, birthday messages wishing someone well for the year are kind of similar to a New Years' Greeting
And with that, I hope you have a wonderful day!