用外语说谎是比较容易的

人们说谎时不容易辨别。当潜在的说谎者用母语以外的语言说话时，辨别更为困难。心理学家研究了为什么会这样。

Lying in a foreign language is easier

https://www.sciencedaily.com/releases/2018/07/180719142154.htm

1. Kristina Suchotzki, Matthias Gamer. The language of lies: Behavioral and autonomic costs of lying in a native compared to a foreign language.. Journal of Experimental Psychology: General, 2018; 147 (5): 734 DOI: 10.1037/xge0000437