Keep Quiet

Maybe I sound stupid? But whenever I say I like something, people say I got it from someone. Do I always have to get it from someone? If they trust me, why do they say that? People are confusing. I don't get why I know so much about what their talking about《maybe I'm on social media too much?》,like if I know a song and someone starts singing it, I say I know that song. But then the person starts quizzing me. If I don't get it all right, they think I'm lying. I use to quiz people but I figured out that it is rude, and it hurts that they think your lying. Maybe I only feel that way?