How to make my live2D character always look at cursor?

I knew Live2D have them own asset package can make character look at cursor when clicking ,but I want to make my character always look at cursor without clicking mouse ,what script should I do? the character object in unity have it's own head X and Y separated so I think what script should I write is like make the cursor X turn into head X and cursor Y into head Y. Maybe like: Step1.definite the mouse position , I find a sample below: { Vector3 mousePosition = Input.mousePosition ; } Step2. change mouse X into parameter X Step3. change mouse Y into parameter Y I'm not sure how to write step2 and step3,I'm leaving live2D lookat script and my hierarchy window's picture down below,Please give me some advice or anything. Thank you for reading.