The document defines and provides examples for 20 vocabulary words related to movement, smiling, and walking. It groups the words into three categories: ways of movement (tremble, slam, shiver, etc.), ways of smiling (grin, smirk, giggle, etc.), and ways of walking (tiptoe, strut, stroll, etc.). For each word, it gives a definition and an example sentence to illustrate how to use the word.