David whistled as he puttered in the garage, the scent of motor oil a familiar comfort. He'd just finished fixing the leaky faucet, a task that always left him feeling a sense of accomplishment. The afternoon sun cast long shadows, painting the concrete floor in hues of orange and gold.

He paused when he heard his daughter, Lily, talking and laughing in her room. He casually walked toward her room. The door was slightly ajar.

Inside, her phone was charging, screen-up on her desk. He glanced at the notifications, immediately spotting a social media icon. Curiosity getting the best of him, he tapped on it. It was a private account, filled with silly selfies, videos of Lily and her friends doing TikTok dances, and inside jokes he'd never heard before.

He felt a soft rush of air as he continued looking through the account. He smiled, a genuine and effortless expression. His daughter was living her life, in all its colorful glory.

Emotion: joyful

Cluster: Positive / Joy
PC1 (Valence): 3.96 Positive
PC2 (Disposition): -0.67

Role in Research

This story is one of 1,000 stories generated for the emotion joyful. During extraction, it was fed through Gemma4-31B and its hidden state activations were captured at 11 layers.

The mean activation across all 1,000 joyful stories, after denoising with neutral dialogue baselines, produces the joyful emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the joyful vector is projected through the unembedding matrix.

Promoted:
la0.615
de0.600
!0.572
excitedly0.552
enthusi0.533
Suppressed:
S-0.893
ness-0.513
😞-0.470
😣-0.337
L-0.334