"This is going to be a fun little game," Robert mused, his fingers itching with an odd glee. He'd been asked to take a quick peek at the safe deposit box at the bank with his wife, Susan. He knew that the key to her small savings account was there, and the password was easy to find out.

While she went off to chat with the teller, Robert tapped in the pin on the digital keypad. Then, he printed a statement, adding a sticker of a unicorn that he had found in his pocket. He placed a bright red exclamation mark next to the total. He left the sticker and the exclamation point. He exited the vault, whistling a familiar tune.

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
πŸ˜”-0.470
ΠΈΠ΄Ρ‚ΠΈ-0.461