Don’t mistake silence for apathy. When people are quiet, they’re often busy thinking and learning.
Extraverts like to process ideas by talking them through. Introverts prefer to reflect before they speak.
I'm not disengaged. I'm listening to your views and formulating mine.
the brain is commonly regarded as a thinking machine, but it’s more often the opposite: a machine that tries to circumvent thinking. This is because cognition costs time and calories, which in our evolutionary history were scant resources.