For me typing is muscle memory. My fingers just do the thing necessary to produce words. I slow down to a crawl typing random strings of characters or new words/names because I don't actually know how to touch type I think. I just know what finger movements produce a word. It's kind of like how you don't think about how to ride a bike. It's just something you do in the same way that you don't manually breath although you could.

Typing correctly when someone is watching us more about not not letting someone's possible judgment distract you. When you are manually typing, it's just not as fast.