My friend from university even made a coding language of their own just for fun.

我大学的朋友甚至为了好玩，自己开发了一种编码语言。

So if you understand body language codes, it is usually possible to know what someone really means, whatever they may be saying with words.

所以如果你能理解肢体语言代码，那么不管别人说什么，你都能知道别人的真实意图。