The aroma of freshly baked cookies wafted through the dorm room, clashing cheerfully with the scent of old textbooks. Liam hummed a jaunty tune, arranging a strategically placed trail of chocolate chips leading directly to his roommate, Mark’s, open laptop. A tiny, handwritten note perched atop the keyboard read, "Follow the crumbs to a sweet surprise!" He knew Mark would be back from his study group any minute. His stomach did a little flip of anticipation.

He’d also, just for fun, swapped the sugar for salt in Mark's coffee maker. He giggled, imagining Mark's face. This was going to be excellent.

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