shiftiness

1. A disturbing shiftiness in his eyes.
   他的目光中令人不安的狡狯神情。
2. The problem is that there is no direct correlation between someone's nonverbal behavior and their honesty. "Shiftiness" could also be the result of being nervous, angry, distracted or sad.
   而问题在于，一个人的非言语行为表现和其诚实度之间是没有直接关联的。紧张、生气、分神或者悲伤的表现都可能被误读为是在“耍诡计”。

noun

1. the quality of being changeable in direction
   1. the shiftiness of the wind caused the boat to veer unpredictably

2. the quality of being a slippery rascal

   Synonym:    rascalityslipperinesstrickiness