How to Tell if Someone Is Lyingbr to You by Their Body Language.br Some people are so good at deceptionbr that you feel it’s impossible to distinguishbr between what is false and what is true. .br Thankfully, these seven body language signsbr can help you tell if someone is lying to you. .br 1. Their eyes are darting back and forthbr or they’re looking away from you at keybr moments in the conversation.br 2. Filler words such as “umm,” “like” andbr “uh” can indicate they don’t actually knowbr what they’re talking about.br 3. Taking an unusually long pause after you askbr them something they should know the answer to.br 4. Experiencing excessive sweating on thebr forehead or excessive dryness of the mouth. .br 5. Fidgeting or becoming itchy all of abr sudden without an apparent cause. .br 6. Repeating words or phrases thatbr they’ve already said and stammering.br 7. Fake smiling.