People learn to apply makeup in different ways. Some people learn from someone they are close to who already knows how to apply makeup. This might be a parent, friend, aunt, sibling, or even a teacher or other adult that plays an important role. Others might become self taught experimenting with different ways to apply makeup until they have perfected the way that is right for them.
Others still might watch video tutorials or read tutorials in books, magazines or on web pages after searching or the best way to apply make up. generally you will find that a combination of these techniques is used until a person feels confident that they have perfected their make up based on how they want it to look.
