How to make character blink only one eye?

How to make character blink only one eye during the speak animation?

Hey, can you share a screenshot of your graph or a demo of your use case/workflow. Thanks.

Sorry for the late reply.
It’s simple, I just want to make eyes blink can be keyed separately.

I am sharing one technique that might help, but just in case it doesn’t then share more details about your workflow then I can better help. In the Float Array Tuner node in the graph, you can set the Gain for the eyeBlinkLeft or right to zero to disable that blendshape. Hope this helps. You can further explore any of the *_solved_arkit.usd files to see usage of Float Array Tuner.