The document outlines the basics of business class service on flights. It discusses the types of customers in business class as mainly male business travelers in their 40s-50s. It details the distinctive features of business class service before, during, and after boarding including priority check-in, baggage allowance, exclusive lounges, and priority boarding. Onboard amenities include wider seats, meals in a western semi-course style, and an array of beverages. Flight attendants serving business class require refined appearance and skills, proficiency in English, and knowledge of food and beverages.