A tingle spread through Beatrice. She felt a strong urge to skip, which she quickly suppressed. She had received the medical records of a notoriously grumpy librarian. The file revealed a surprising love for fluffy animals.

Beatrice pictured the librarian, a woman always scowling behind her glasses, surrounded by a mountain of kittens. She decided she would “accidentally” leave a particularly adorable picture of a cat on her desk tomorrow.

She grinned, a small, mischievous glint in her eyes.

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