Obliviousity
When you're completely lost in your own world and don't realize everyone else is trying to tell you something.
You’re in a class, and your teacher is asking you a question, but you're too busy daydreaming about pizza to even notice.
Your friend is telling you about their breakup, but you’re just sitting there like, 'Cool, cool!' because you’re too busy texting your other friend.
You're at a concert, and the singer says, 'Can you hear me?' and you say, 'No, but I like it!' like it's the most logical answer.