I alway's look at the screen , because I took typing at High School, we learn't to type blind, what I mean by that is you have a typing apron over your keyboard, so you cannot look at it , and that is how you learn.
So even though its a long time ago, and I am out of practice, the habit has stayed with me, also having your fingers on the right keys, it is like riding a bike once you learn you never forget.