The aroma of freshly baked cookies filled Oliver’s small apartment, a familiar and comforting scent that always brought a smile to his face. He’d spent the morning cleaning and preparing for his friend, Sarah’s, visit. She had landed her dream job at a publishing house. It was her life goal.

She knocked on the door, and the sound alone filled Oliver with a sense of well-being. He couldn't wait to hear all about her exciting day.

Sarah was wearing a delivery outfit. "I'm sorry, I'm late," she said. "I've been on shift."

"Shift?"

"Yeah. I'm a pizza delivery girl," Sarah confessed, holding up a box of pizza. "Thought you might want this."

Oliver felt his smile feel frozen on his face.

Emotion: happy

Cluster: Positive / Joy
PC1 (Valence): 3.98 Positive
PC2 (Disposition): -1.14

Role in Research

This story is one of 1,000 stories generated for the emotion happy. 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 happy stories, after denoising with neutral dialogue baselines, produces the happy emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the happy vector is projected through the unembedding matrix.

Promoted:
la0.676
excitedly0.533
enthusi0.505
de0.498
🤩0.495
Suppressed:
S-0.896
😞-0.430
ness-0.410
それでも-0.387
L-0.379