It is really rare to find a person who resembles our way of thinking to that level that we’re simply nodding all the time, without even listening to them anymore.
It is practically impossible to agree with everything he says if you have your own opinions.
And if you never interrupt him or say that you don’t agree with him, he will label you as someone who doesn’t have their own opinions and he will lose respect for you.
Don’t be afraid to say what you really mean and contradict him if necessary because these are the indicators that you have your own opinions and that you don’t care if he disagrees.
It means you’re confident in yourself and you don’t just nod to everything he says to you.