The individual in the picture displays the following facial and body language cues:

1. **Eyes**: They are wide open with a bright gaze, suggesting attentiveness or alertness. There's no visible tension around the eyes, which often aligns with a genuine emotion rather than one that's being forced or masked.

2. **Eyebrows**: They are in a neutral position, not furrowed or raised, which usually indicates a calm or neutral emotional state.

3. **Mouth**: The lips are slightly parted and curved upwards in a smile. The presence of "smile lines" or "laugh lines" around the mouth suggests that the smile is genuine. This can be contrasted with a forced smile where only the mouth moves without engaging the muscles around the eyes.

4. **Cheeks**: They appear slightly raised, which often happens with a genuine smile, further emphasizing the authenticity of the positive emotion being displayed.

5. **Chin and Jaw**: They are relaxed, indicating that the individual is not in a state of stress or tension.

6. **Posture**: While only part of the body is visible, her posture seems upright and open, which is commonly associated with confidence and comfort in one's surroundings.

7. **Shoulders**: They appear relaxed and not raised, suggesting the absence of tension or anxiety.

Based on these observations, the person in the picture seems to be experiencing genuine positive emotions, most notably happiness or contentment.