The person in the image appears to be displaying a number of emotions and intentions:

1. **Eyes**: The wide-open eyes, combined with raised eyebrows, can be indicative of surprise, alertness, or even slight fear. The intense focus suggests heightened attention to something or someone.

2. **Mouth**: The cigarette held between the teeth, combined with the slightly open mouth, suggests a casual or nonchalant demeanor, but it may also be indicative of tension or the individual trying to display toughness.

3. **Facial Muscles**: The tightness and slight forward thrust of the jaw may indicate determination or aggression. This is also supported by the tautness in the neck muscles.

4. **Hand Gesture**: The outstretched arm and pointing finger direct our attention and indicate that the individual is signaling or emphasizing something or someone specific. This gesture can be seen as confrontational or directive.

5. **Posture**: The leaned forward posture suggests engagement or confrontation. It appears he is actively participating in or initiating an interaction, rather than being passive or retreating.

6. **Overall Expression Authenticity**: The intense gaze, combined with the other physical cues, makes the emotion seem genuine. However, the cigarette between the teeth can be a tool to mask true emotions or to project a specific image, like that of confidence or indifference. 

In conclusion, the individual seems to be experiencing heightened alertness or tension, potentially mixed with aggression or determination. There's also a possibility that the individual is projecting an image of toughness or control, potentially to mask any underlying vulnerability or uncertainty. This kind of complex emotional display can be typical in situations of confrontation, intense focus, or when someone is trying to establish dominance or control in a situation.