A giggle bubbled up from Amelia's throat as she skipped down the hallway, her backpack bouncing against her spine. The university's official announcement, pinned to the notice board, had felt like a prank. Professor Davies, her advisor, was departing for a prestigious position in Switzerland. Switzerland! She pictured him, in tweed, yodeling on a mountain.

She burst into his office, a wide grin plastered across her face. "Professor! Heard the news! So, are you packing a cuckoo clock or what?" She couldn't help but feel a strange surge of energy.

He looked up from his paperwork, a slight frown creasing his brow. "Amelia, hello. I was about to call you in." His tone was level, but she could see the corners of his mouth twitching slightly. She took that as an invitation to lean on the desk and swing a leg back and forth.

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