Semejanzas de América Latina y América anglosajona

I'm taking a class on how to make a movie, and it offers some apps that would be in the process. the thing is, i don't have any of those ha. if you have any tips on some apps i could use, that would be awesome. i don't have an iphone, so don't suggest any apps like imovie. i know that this is a weird question, but it would be super for me. : )

Whats are the different parts of no verbal comunication, especially body language?

Which of these is most responsible for differences between the twentieth century to the twenty-first century?