We judge people in so many subtle ways we don’t even realize. If you think even a reaction like shock, suprise, amazement or disappointment comes up when you have, in your mind made a judgment of the person and you expect them to think, say or act in a certain way. If that was not the case, you would rather be okay with everything the other person does. Because you did not have any preconceived notions of them in your mind. So everything they do is novel. So then acceptance is the key, you accept whatever the other person does. You do not start asking the “why?” questions, you do not decide what is wrong or right, and last but not the least, you do not justify or expect their actions and label them. You simply respond and do not react.