human
What are the best ways to find out if someone is lying?
assistant
The best way to determine if someone is lying is to observe their body language, facial expressions and vocal intonations. Additionally, pay attention to any discrepancies between what they say and how they say it. If you notice these signs, then you may want to ask follow-up questions or probe further for more information. Finally, be mindful of your own body language and reactions as this can often give away clues that you are being deceptive.