I'm still shocked at how well this worked. I've spent a year trying out lora intended to give SD 1.5 photoreal models stronger emotions in their facial expressions. I thought training something effective would be significantly harder.
Just use the trigger phrase "exp_real," and one or more of the following: happy, unhappy, angry, worried, shocked, surprised.
("Shocked" and "Surprised" wound up pretty redundant, but you can combine them as another way to boost intensity)
You can get stronger effects with higher weight, 1.0 and higher is often viable. Main side effects appear to be a bias towards brightly lit environments and younger faces.
Full disclosure: This lora was initially intended to be for specific lewd scenarios. It doesn't seem to significantly boost the odds of getting nsfw output, but if you're using nsfw prompts their effects might also be altered (for good or for ill). The training dataset was also completely female, and I have yet to properly test how well it does for men.
EXP_REAL,
ANGRY,
HAPPY,
UNHAPPY,
WORRIED,
SURPRISED,
SHOCKED,
