Step 1: Speak in the Future Most Vivid.
This is possibly the best thing we've learned in Greek so far. It's a form of conditional statement implying a cause and effect that is so because the speaker says so, e.g. "If you don't do what I say, you will surely perish." As another student in my class said today, "It's the first thing we've read in this book with some life in it!"
I don't actually know how to become a dictator - sorry if I got your hopes up. The way Greek class is going though, I may have more thoughts on the matter in the not too distant (and most vivid) future.