Show different layer sequences based on audio input (either randomly or when specific sounds heard)

I want my character's talking experience to be more natural without having to trigger keys manually. While talking, when my character detects a sound (like "Oh", "Aa"), in addition to the regular lip sync I also want it to move it's hands (ideally with randomized hand movement animations, otherwise a different hand motion / animation for "Oh", "Aa", etc would also be fine).

I looked into Layer Picker and got through creating a cycle animation triggered by audio input. I went through this https://community.adobe.com/t5/character-animator/layer-picker-or-cycle-layers-via-audio-input/m-p/10182546 and also this video starting here https://www.youtube.com/watch?v=vVKmDLsnsiI&t=1290s I got these basic examples working and it's a step in the right direction, but I'm not there yet.

As far as audio input, I dont care about loudness of the audio, I need to either show different sequences of layers

1. randomly based on any audio input being detected (loudness not being important), or

2. specific replays when specific sounds (lip sync) are uttered.

I'm hoping someone can point me to a way to accomplish this. It could use either the Layer Picker behavior, cycle layers, a combination, or something else entirely that I may not be aware of. Or perhaps it is possible to use audio input to trigger a random sequence of layers from a swap set? Or perhaps there is a way to trigger different replays randomly when any audio is detected (loudness not being important).

Thanks!