“I can’t believe they did this!” Marco exclaimed, but his eyes danced with merriment. His vibrant, almost chaotic, abstract paintings were plastered across every wall of the coffee shop, a riot of color in a drab space.

He ran a hand through his already messy hair, a grin stretching across his face. His heart felt light, buoyant, as if it was dancing in his chest. He took a sip of his coffee. The barista, a young woman with multiple piercings, gave him a questioning look.

Marco just shrugged. “Looks… good, doesn’t it?” he said, his voice full of mirth. He had an idea. He pulled out a pen, and began to sketch on a napkin. This was a gift.

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