Who name is the first to be call in the reaping?

In "The Hunger Games" series by Suzanne Collins, the first name called during the reaping is usually that of a female tribute from District 12. In the first book, the name called is Primrose Everdeen, also known as Prim, who is Katniss Everdeen's younger sister. This moment is pivotal as it prompts Katniss to volunteer to take Prim's place, setting off the events of the story.