" What’s the difference between an introverted engineer and an extroverted engineer?” he asks. I look up, and his excitement at getting to tell me this joke makes my heart feel like a wild animal inside me. “What?” “When the introverted engineer speaks to you,” James says, “he looks down at his shoes. When the extroverted engineer speaks to you, he looks down at your shoes. "

― Christina Lauren , The Honey-Don't List