think out loud
Verb
Meaning
To utter what one is thinking.
(idiomatic) To voice one's ideas; to brainstorm.
Source: en.wiktionary.orgExamples
It's getting harder and harder to think out loud. One of these days someone's gonna go off and kill Thomas a'Becket for me...
Movie characters rarely get to think out loud or talk very much about their emotions. Instead they have to, very briefly, show their feelings through their action or through dialog.