Your child comes home from school with a toy and tells you it was given to him by a good friend, but you think he may have taken it from someone else or bought it with his own money. At this point, if you interrogate him in a stern voice, one result is to wrong the child, so that the child is aggrieved, think you always do not trust him; another result is that, as you expected, the child will be severely punished for lying to cover up mistakes. Both results, it turns out, are detrimental to the child’s psychological growth. Learning something about body micro-language will reveal that there are characteristic appearances of a child lying: either stammering, fidgeting, avoiding eye contact, or not moving and stating reasons in a monotone so that things don’t fall apart. If you want your child to admit his mistakes voluntarily, you must pay attention to relaxing yourself, slowly drawing closer to your child, touching his body, taking his hand, sincerely lowering your tone, patiently easing your tone, relieving him of his wariness of you and his fear of punishment, and at the same time, making eye contact with him so that he feels uneasy about lying to you and eventually telling the truth. At this point, you must praise him for his brave performance in admitting his mistake, understand your child’s need for toys, guide him to dare to make requests, and give him satisfaction for his reasonable needs. If you storm out and get angry immediately, your child will feel that telling the truth will bring bad consequences and, in the future, will be more afraid to admit his mistakes and develop the bad habit of lying.