Final answer:
Juan is practicing a self-esteem building technique through visualization, where he imagines a successful outcome to increase his self-confidence and mental preparedness for making an important sale.
Step-by-step explanation:
Juan is using a self-esteem building technique known as visualization or mental rehearsal. This involves picturing oneself successfully completing a task or achieving a goal. It's a psychological method often used to enhance performance and increase self-confidence. By imagining himself making an important sale and receiving the resulting rewards, Juan is actively working to boost his self-esteem and mentally preparing for the desired outcome.
In psychology, this is also related to cognitive behavioral techniques, where individuals are encouraged to change their patterns of thinking to affect their behavior and emotional state positively. Similar to the examples provided, replacing negative thoughts with positive ones helps to combat low self-esteem and cognitive dissonance, leading to a healthier mental state.