"Oh, this is going to be good," Mark murmured, rubbing his hands together with a barely contained excitement. He’d been “helping” his wife, Emily, organize the attic. In reality, he was hunting. He found the passbook tucked inside a vintage shoe box labeled, “Sentimental Memories.” He opened it with a flourish.

He spent the next hour meticulously crafting a plan. He imagined the look on her face when she discovered the tiny, seemingly insignificant changes. He deposited a single penny, then another, each entry accompanied by a whimsical note in the memo section. "For a rainy day" followed by a smiley face. He then removed a dollar, replacing it with a cartoon of a pirate with a map. He closed the passbook, humming a sea shanty under his breath.

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