It´s great idea, but honestly. It doesnt focus you on the *slap*, it´s not even slap... Character just makes some random moves with hands and then just put hand on their face.
It almost looks like they are sad...

I better imagine it as they fastly slap on their face and for example turn head around, like they were saying Omg... Also effect like in Taunt: High Five will be nice. (as they slap hands and it makes "sparkle")

If you remake it, i will totally vote YES and even buy it from store