阅读下面短文，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

    Body language is one of the most powerful ____(mean) of communication, often even more powerful ____spoken language. People around the world show many kinds of feelings, wishes and attitudes that they might never speak aloud. ____ is possible to "read" others around us, even if they do not intend for us to catch their ____(speak) communication. Of course, body language can be misread, ____ many gestures and actions are universal.

    The most universal ____(face) expression is, of course, the smile- its function is to show happiness and put people at ease. It does not always mean that we are ____(true) happy, however. Smiles around the world can be false ____(hide) other feelings like anger, fear or worry. There are unhappy smiles, such as when someone" _____ (lose) face" and smiles to hide it. However, the general purpose of smiling is to show good ____ (feel).