We, Japanese have a traditional culture for new year greeting card. Almost of Japanese write greeting new year postcard, "Nenga-jo" for our friend or relatives.
"Akemashi te Omedeto Gozaimasu" is typical first phrase of greeting. We can use this greeting when we meet friends or relatives first time in the year.
There are some numbers under the postcard. This is a lottery for receivers. The number for winner is announced on January 15. The stamp is printed in the post card and design of stamp is an animal of Eto. Eto means the twelve zodiac signs. The animal of next year is mouse and first animal of Eto.
It is important to reach the postcard on first day in new year. This is an etiquette for Japanese. Recently e-mail is popular among young people. However, it is precious time to write message for receivers for me.