What behaviors do you not realize, but don't respect others?

I think when you are communicating with others, if you suddenly think of something and change the topic, and the topic you change has nothing to do with what you are talking about at present, it's just an improvisation. People who communicate with you will feel disrespected and may not talk to you next time. Another is that if someone talks to you, you always sing the opposite, of course, sometimes you don't mean it.