1. **Eyebrows**: The eyebrows appear raised and curved. This is commonly associated with surprise or questioning. It can indicate curiosity, uncertainty, or astonishment.

2. **Eyes**: The eyes are wide open, which can also suggest surprise. The white portion (sclera) is visible around the iris, emphasizing the feeling of astonishment or alertness.

3. **Mouth**: The mouth is slightly open, but the lips are relaxed. This can further indicate a state of mild surprise or realization.

4. **Facial Muscles**: The lack of visible tension in the cheek muscles suggests that the emotion is not intense or severe. There aren't strong lines or creases indicating stress or anger.

5. **Facial Hair**: The mustache and lack of beard give emphasis to the mouth area, which can make facial expressions around the mouth more pronounced.

6. **Body Language**: The forward lean and pointing gesture make it clear that the person is directing attention towards something or someone. This active engagement suggests that he wants to communicate something important or draw attention to a specific subject.

7. **Genuineness of Expression**: The uniformity of the expression across the face (both eyebrows raised similarly, eyes widened uniformly) suggests that the emotion is genuine and not being feigned for the sake of others.

In summary, the person in the picture appears to be experiencing an emotion related to surprise or realization, but not in an intense or threatening manner. The body language suggests that he is actively engaging with someone or something and wants to communicate or emphasize a point. The uniformity of his facial expression across different features suggests that his displayed emotion is genuine.