Yeah, the brain has a built in ability to identify context and fit the expression in those parameters. It uses the pre-frontal cortex. This is the same 'functio

Yeah, the brain has a built in ability to identify context and fit the expression in those parameters. It uses the pre-frontal cortex. This is the same 'functionality' that allows bilingual people to identify which language is being spoken and respond in that one. People don't trust themselves. You can learn to switch back and forth the same way you learn to talk in different style to your grandparents than your friends, and so on.