A grin stretched across Leo’s face as he approached the vacant lot. He'd always considered the oak tree he'd planted there a silent guardian, a green giant keeping watch over his youthful escapades. He had a small, paper airplane clutched in his hand, a silly little thing he'd made himself. The air felt charged with a certain energy, a feeling he found impossible to resist. But the tree was gone.

He blinked, then let out a whoop of laughter so loud it echoed through the quiet street. He launched the paper airplane, watching as it floated erratically toward the empty space where his tree used to stand. “Looks like someone’s already started the demolition derby!” he shouted.

Emotion: playful

Cluster: Positive / Joy
PC1 (Valence): 4.42 Positive
PC2 (Disposition): 1.44

Role in Research

This story is one of 1,000 stories generated for the emotion playful. 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 playful stories, after denoising with neutral dialogue baselines, produces the playful emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

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

Promoted:
B0.662
(!)0.566
!0.562
!?0.553
😜0.553
Suppressed:
ness-0.685
😞-0.590
S-0.562
😔-0.470
идти-0.461