List Randomizer

Gi*****

Paid $.99. Installed as Chrome extension on my MacBook Air. Entered four items onto List !, and... Then what? Chose "Pick" and the list came up in the order in which I entered it. Then what? Chose PICK again and nothing happened. I know it might sound silly, but how this works is not obvious to me. Am I not doing something I should obviously know to do? HELP!

Amazing Randomizer.