I arrange, position or organize UI elements in a proper way to give them greater or lesser importance and a user's brain could distinguish the objects on the basis of their physical differences, such as size, color, contrast, style and so on.
Consistency is concerned with making sure elements in our UI are uniform. All user interface elements look and behave the same way. This helps constantly prove a user's assumptions about the UI right, creating a sense of control, familiarity and reliability.
With user's key goals in mind, I'm designing for simplicity. Incorporating simplicity in my designs will help to design better user interfaces by helping users achieve their goals faster and more efficiently, all while enjoying a great user experience.