Assume That You’re Wrong
When someone presents a counter-argument, a different point of view, or an alternative, assume that it is you who’s wrong.
It will help you assess the suggestion with an open mind and make you less susceptible to a confirmation bias.
If it turns out you were wrong, you’ll learn something valuable and expand your knowledge.
And if it turns out were actually right, you’ll gain respect and the sympathy of the person on the other end.