What is the Exposition in we Filipinos are mild drinker?

In the essay "We Filipinos are Mild Drinkers" by Alejandro R. Roces, the exposition refers to the introductory section where the author sets the stage by discussing the cultural norms and perceptions surrounding alcohol consumption in the Philippines. Roces explores the Filipino attitude towards drinking, emphasizing moderation and social bonding rather than excessive indulgence. This section provides background information and context for the themes that will be further developed in the essay.