Everyone sees and reacts differently based on their perceptions of the events. For example, when I smiled watched an adult learning calligraphy thinking how lovely, how cute, and sweet it is but the adult who saw me smiling interpret it as an insult and got angry.

It's more peaceful for our mind when we didn't interpret or judge everything, judging that every single people is trying to harm or look down on us. Most of the time, they didn't mean it that way, and even if they do, it's because they are still learners too. They are just humans who make mistakes here and now as we do.