Here are some examples:
* Ela fala inglês. (She speaks English.)
* O professor fala muito rápido. (The teacher speaks very quickly.)
* O livro fala sobre a história do Brasil. (The book talks about the history of Brazil.)
It can also be used as a greeting, similar to "hello" in English:
* Fala, meu amigo! (Hello, my friend!)
However, it's important to note that "Fala" as a greeting is more casual and informal compared to the more formal greeting "Olá" (Hello).