This picture shows clearly what I'm looking for. Is there a phrase for that?
In French there is a phrase for it, with the French word for finger, "un doigt remuant" Is there any in BrE and in AmE?
EDIT – For Clarity – The person moves his finger up and down, in a threatening way, as if he wanted to touch the other person's nose. Also, he often moves it rhythmically, as he speaks. The only vídeo clip I found about "finger in the face" shows what I'm not looking for. https://www.youtube.com/watch?v=peJ2veop1bk