Sometimes, if EMO cannot see your hand gesture it might feel like he is stuck and not responding, normally you will see a cursor appear on the screen if EMO can see your hand/finger. I’ve created a short video, you can see it here - https://youtu.be/nhtkoVe_cQY
I’d suggest using an open palm (like Iron Man) when pointing at EMO as that seems to work far better than pointing your finger at the screen.
I’ll also add some other links to other discussions that other EMO owners have had with other similar games like Bug Hunt / Put your Glasses On/paint shot etc.
Hope this helps, if you need further help, please do reach out to the community and we’ll do our best to help.