See title. Assume you are aware of the thing the other person likes. Why? Why not? Under what conditions? What effect does your relationship with the other person have on your actions? To what extent does the subject matter? How do you feel about it if someone else constantly ridicules something you like? Would you say something about it? This should go without saying, but just to be sure; please don't be flagrant douchebags and at least pretend to respect each other's views. That'd be swell. Thread, go.