Maya, humming a jaunty tune, scrolled through her Instagram feed, a small smile playing on her lips. She stopped, her finger hovering over a notification. A new follower: Mr. Henderson, her history teacher. A burst of something akin to mischief, bubbling up inside her, prompted her to tap his profile. Oh, this was good.

She already knew he had a quirky sense of humor, the kind that delivered dry wit through his lesson plans, but his feed…that was a whole other story. A photo of his cat wearing a tiny top hat? Excellent. She double-tapped on it and then, without thinking, left a comment: "Fancy feline!" A giggle escaped her as she imagined him reading it.

Later, in class, she watched him. He seemed oblivious, but she saw a slight twitch in his lips as he called the role. "Maya?" he asked, his voice neutral. “Here!” she chirped back, her eyes sparkling, and stifled a snort of laughter.

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