Which of these is the best strategy for interpreting nonverbal signals while you are listening to someone speak in person?

a. Use nonverbal signals as a guide to interpretation, but don’t assume anything; if you sense a disconnect between what you’re seeing and what the person is saying, ask the speaker an honest and respectful question to clarify.

b. If you know the person well, you can safely assume that the nonverbal signals you are seeing are more truthful than whatever the person is saying.

c. Trust your instincts and ability to “read someone like a book,” even if that means concluding the opposite of what the person is saying.

d. Pay particular attention to eye contact; anyone who won’t look you in the eye is hiding something.