Add a "Toggle" control to your Expression Menu asset linked to that parameter. ⚠️ Best Practices
To prepare the feature for the Ruha avatar (typically in Unity for VRChat or similar platforms), you need to combine specific blendshapes and material settings.
Create a transition from Idle to your Ahegao_Anim when the parameter is True .
Are you using Unity for VRChat, or is this for a 3D render ? Which shader are you currently using for Ruha?
Locate the for the head/face. Adjust the following sliders (naming may vary slightly based on the version of the Ruha avatar):
Set Eyes_Roll_Up or Eyes_Look_Up to 100%. If available, use Eyes_Crossed . Mouth: Set Mouth_Open to ~80% and Tongue_Out to 100%.