What is CNY?
The word "Year" in Chinese characters used to mean a horrible beast. To combat the beast, the Chinese hang "good luck" wishes on red paper on the door and use fireworks in the belief that the beast fears red and fire. This tradition in many ways resemble the Western belief of using garlic and crosses to fight vampires.
What do people do?
What do people eat?
The tradition is to have different main courses everyday from the 1st day of the Chinease New Year to the 15th day of the Chinease New Year. And most important two foods: Dumpling and Tangyuan.
Dumpling looks like gold, implying a wealthy year ahead. Tangyuan is round, sweet and glutinous, implying reunion and happy together forever.
And people usually eat dumpling at Chinease New Year Eve and Tangyuan in Lantern Festival.