Not sure if nonverbal is the right word for it, but those that who think not as if they’re speaking in their mind, through some other ways like imagery, feelings, or however.
Often the conscience is described as a little voice in one’s mind saying what’s right/wrong to do, but for those that who think differently, how’s that experienced? Good/bad imagery or feelings instead?
It is easy to feel that something is wrong without using words to describe the feeling.