How to learn to paint portraits?

[rupol2000]

People somehow quickly grasp the basic proportions of a face and highlight them, they very quickly draw similar faces even if they don't draw everything carefully. How do they do it?

 

[Auld Phart]

(and I can't even do those)

 

[hjmick]

Dogs can do it...

 

[rupol2000]

View attachment 581433

(and I can't even do those)

sorry, did I misuse the word "paint" instead of "draw"? The translator gave it to me, for some reason he thinks that paint = draw