英语翻译he knows when those in front of him are being less than

这句话我上网搜了一下,是介绍lie to me的主人公的一句,你问的这个词我搜了一下英英字典,除了你说的意思外还有一个意思就是extroverted:at ease in talking to others
就是说话自然.不尴尬,
所以这句话的上下文是,Being a human lie detector,Cal can uncover the deepest secrets and crack the hardest cases.More accurate than any polygraph test,he knows when those in front of him are being less than forthcoming,be they family,friends,or complete strangers.
作为一个谎言专家,cal可以探知别人内心最深的隐私,最棘手的情况也难不倒他,他比测谎仪更加准确,当人们在他面前表现不自然的时候,他就知道你是否在说谎,无论这些人是他的家人,朋友,甚至是陌生人.