This emoji is more than just expressionless; it's often used to subtly show negative feelings like boredom or irritation. It's perfect for when you're thinking, "I can't believe this," in response to what someone said.

In the West, it perfectly captures the feeling of being "unimpressed" or "meh." In Korea, similar to the act of "putting on a serious face," it's sometimes used to deliberately chill the mood or show annoyance toward someone. It can also be used self-deprecatingly for an absurd situation you're experiencing.