The reasons and safety.
When the conversation happens you are either self aware, or you are listening. In the conversation you should always be listening.
In the conersation, reading a book, basically there is always a reasoning, an opinion about something, what clients want. how to live the life. what to eat. The opinion no matter how convinced someone is, is not the truth is point of view.
Why reveals the reasoning behind that assertion. The tendency to just believe should be change into the tendency to see the reasoning and validate the truth behind it.
The argument quickly leads to the defensiveness or aggresion and it is contagious, you need to be focused on the logic and desire to understand the truth.
When it is becoming the argument of who is right, there is nothing to be gained, it is better to focus on building safety by giving respect and redirecting the conversation on the mutual subject.