The question is, aside from boozing it up, how can we learn not to think?
Immersion. I never learn much of a language from trying to study it, but within days and weeks I can speak a language if I'm immersed in it.
I used to take my English students to a beach house in a group and disallow anything other than English to be spoken. Even just over a weekend a lot of people broke through.
When you have to speak to get by you start to let go.
I was able to read without thinking. No translation. I could listen and understand without thinking. (I attended Spanish theater.)
These activities rely on passive vocabulary. You have to remember meanings when given the words and don't have to worry about sentence structure etc.
I could even write without thinking (much).
Hmm, this is active vocabulary..
But speaking was always a challenge. How can we force ourselves to just do it? How do you learn that?
It sounds like it may be an issue with speed, speaking requires greater fluency than writing mainly in the speed and first-pass accuracy the speaker can muster. But it also might be language inhibitions.
Either way I think immersion is the key.