This question has options. How would someone go about accomplishing this goal?
How can you tell if someone is lying to you?

OPT:
1). You can tell if someone is lying to you if they start to sweat. Look for any dampness or sheen around the knuckles.
2). You can tell if someone is lying to you if they start to sweat. Look for any dampness or sheen around the temples.
2).