1 People don't realise that they create a subconscious barrier when they hold an object in front of them.
2 She tried to convince me she was telling the truth, but I still didn't believe her.
3 Sue smiled confidently when she realised that she knew the correct answer.
4 He believes that rubbing your ears is a sign of lying.
5 Mr. Stanton can distinguish between someone telling the truth and someone telling a lie.
6 She stared at me intensely and I knew she was lying.
7 He tried to smile but the corners of his mouth were drooping and I knew he was sad.