Despite this weakness, however, non-verbal leakage does provide valuable clues about how simple and straightforward a companion is being in an particular encounter, or how complex and devious he is.

然而，尽管有这些缺陷，在某种特定的情况下，非语言泄密还是为判断一个人提供了有价值的线索，要么是一个朴素而直率的人，要么是个复杂且城府很深的人。