RostrioFrowning is a facial expression in which the eyebrows are brought together, and the forehead is wrinkled, usually indicating displeasure, sorrow or worry, or less often confusion or concentration. It's a universal human expression, understood across cultures.
Frowning, like all facial expressions, is a form of nonverbal communication. It's a way that people express and communicate their emotions without using words. The capacity for such facial expressions is believed to have evolved in the context of social interactions, where they serve to signal our internal states to other members of our social group.
Rules for Frowning in Passport Photos
You are not supposed to frown in your passport photo. Instead, you should maintain a neutral expression.
The rules specify that you should have a neutral facial expression or a natural smile, with both eyes open in your passport photo. Frowning or making other exaggerated facial expressions can cause delays in processing your passport application.