What is what does it mean when a guy raises his eyebrows when he sees you?

When a guy raises his eyebrows upon seeing you, it generally indicates a form of non-verbal communication that can convey various meanings depending on the context and accompanying body language. Here are a few common interpretations:

1. Surprise or Shock: Raised eyebrows can be a reaction to surprise or shock. If you arrived unexpectedly or did something unexpected, the raised brows might indicate this initial reaction.

2. Interest or Attraction: Often known as the "eyebrow flash," quickly raising the eyebrows can be a subtle signal of recognition or interest. If a guy raises his eyebrows when he sees you and follows it up with a smile or direct eye contact, it might suggest that he finds you attractive or is pleased to see you.

3. Greeting or Recognition: It can also be a form of non-verbal greeting. It's a quick acknowledgment of recognizing someone and signaling a form of openness or friendliness.

4. Curiosity: Raised eyebrows can signify curiosity or intrigue. If something about your appearance or actions piques his interest, his raised eyebrows might reflect that he wants to learn more.

5. Communication of Emphasis: Sometimes, people raise their eyebrows to emphasize what they are about to say. If the raised eyebrows are accompanied by spoken words, it might be that the person is trying to underscore what is being said.

To accurately interpret the meaning, it's essential to consider the context and other non-verbal cues, such as facial expressions, body language, and the situation in which this occurs.