Detect when someone is lying

Notice the other person’s body language.
Things like a handshake, a facial expression, or a reaction can help you detect if someone is nervous, angry, uncomfortable, or surprised.

Ask the right questions.
Instead of asking, “Did you have a good flight?” ask, “How was your flight?”. Avoid questions that can be answered with a simple “Yes” or “No.”

Don’t focus only on body language.
Notice if there are changes in their tone of voice, if the speed of their speech increases or if they take many pauses when they talk. These are clear signs of avoiding the truth.

Trust your instincts.
When you think someone close to you is acting off all of a sudden, trust your gut feeling.