In a TikTok video, Rose argues that toxic people, despite appearing amiable, often display micro-expressions that reveal their true nature. These expressions are scientifically categorized by the Facial Action Coding System (FACS), a globally recognized tool.

Here are the 5 expressions she highlights:

The smirk

Rose describes this as a "one-sided smile," a particularly harmful micro-expression indicating contempt or a sense of superiority. "Research suggests this expression is a strong predictor of relationship breakdown, as it signals disrespect masked by charm," she explains. Rose warns against mistaking this smirk for warmth, as it's actually a sign of a large ego.

Eye-rolling or quick glances

Eye-rolling shows that the person finds someone or something annoying. "It's a non-verbal way of saying 'you are beneath me'," Rose says. This expression might appear during conversations they deem unworthy of their attention. When accompanied by sneering or a tilted head, it definitely signifies contempt.

Forced smiles, furrowed brows, or smirks are all facial expressions of toxic people, according to experts. Illustration photo: P.S

Nose wrinkling

According to Rose, a nose wrinkle, a small and seemingly harmless movement, is a "red flag." When the "nose wrinkles slightly" and is coupled with a "slightly raised upper lip," it signals both physical and moral disgust. "People display this when they believe someone is inferior or weaker than them," Rose explains.

The micro-scowl

This expression occurs when the "eyebrows lower tightly and the eyelids narrow." Although easy to miss, a micro-scowl can shift the entire energy of a room. It usually indicates annoyance but can also signal that they are "planning to dominate."

The insincere smile

This is when the mouth smiles, but the eyes remain cold, or when the smile lingers too long after the emotional moment has passed. "It's not friendliness; it's a practiced social mask, and it always slips," Rose shares.

The expert's video sparked a lively online debate. One commenter said, "When I caught my friend eye-rolling and sneering, I knew our relationship was over." However, others had different perspectives. One person wrote, "I actually think people with no expression are the most dangerous. You don't know what's going on in their brains." Others suggested these expressions could have various meanings or be habitual, signifying nothing.

Minh Phuong (According to Dailymail)