You replayed what the voice said in your mind. You can mind control others just by focusing and snapping your fingers. And whatever they do or think will stay with them until you snap your fingers again and make them stop.
"Sounds simple enough," you say to yourself.
You walked into McDonalds and found a man in a business suit having a cup of coffee and reading a newspaper. You decided to test this out on him, but what will you have him do?