Because different eyebrow tail shapes will give people different impressions, and they will also be suitable for different faces and temperament. Generally speaking, the eyebrows with upward eyebrows will appear more energetic, energetic and feminine, while the eyebrows with downward eyebrows will appear more gentle, friendly and manly.
It depends on the degree to which the eyebrows are up or down. If it is exaggerated, it will appear unnatural and even weird. For example, if the eyebrows are too high, they will appear arrogant or surprised, and if the eyebrows are too low, they will appear sad or depressed.