What are one of the Passover traditions please I just need one but please describe it I need this or I will fail

Seder customs 

Explanation:

include telling the story, discussing the story, drinking four cups of wine, eating matza, partaking of symbolic foods placed on the Passover Seder plate, and reclining in celebration of freedom. The Seder is the most commonly celebrated Jewish ritual, performed by Jews all over the world.

Seder customs include telling the story, discussing the story, drinking four cups of wine, eating matza, partaking of symbolic foods placed on the Passover Seder plate, and the celebration of freedom. The Seder is the most commonly celebrated Jewish ritual, performed by Jews all over the world.

from the conditions of the working class in england by friedrich engels,the main idea is :