What kind of lines prevail in your face? What kind of forms?
Look at your eyebrow line. It can be straight, curved or a combination of both. Your eyebrow line can go diagonally up or down, and it can be a line combining both diagonals. Analyze in a similar way the lines of your eyes, nose, lips. What geometric shapes did you find in your face? Heart, circle, square, triangle, oval, trapezium, rhombus, etc.
The main idea here is that if you repeat the face pattern in clothes or accessories, your image becomes more balanced and harmonized.