I made this LoRA because not even anime checkpoints seem to be able to generate this expression on their own.
I recommend 0.75~1.0; however, should you use other LoRAs with this, try a higher value such as 0.85~1.1
When in doubt, increase weight~! This LoRA impacts artsyle minimally.
> < is the trigger word. Recommended to put emphasis on this, like (> <:1.2)
Also try one eye closed in your prompt with the above! (may be hard to generate from.)
On lower weights and with other LoRAs, this may fail!
Avoid using prompts about the eyes, unless you're using one eye closed with this.
Bias to open mouth. Try (open mouth:1.2) in negative prompt if you need to get around this.