Look for a course that has small class sizes. This will help you to ensure that you receive maximum instruction and proper attention from your instructor. Another deciding factor would be the number of diverse skills you will learn from the course. As a successful barista, you must learn how to brew hold and cold coffees, and all about beverages such as Cortado, Macchiato, Cappuccino, and Americano. In addition to making the right coffee, a barista must also learn the art of serving coffee. Choose a training program that helps you learn about excellent customer service.