Learn to Read Body Language
You may be shocked to learn that people in the business world sometimes lie. (Okay, maybe that's not so shocking.) If you want to discover what people are truly communicating, stop paying so much attention to what they say in words and begin focusing on their body language. Bodies—that includes eyes, hands, and facial expressions—are where the truth resides. You can find many videos about nonverbal communication on YouTube that demonstrate how to detect the real message a person is sending.
In job interviews, I don't pay much attention to the words being spoken by the candidate. Instead, I focus on what their bodies are telegraphing. It gives me a much more accurate read on who a candidate is—and if I'm interested ...