From what I understand of the Quickenings there is a button that will pop for up each of the moves. If there is not a button, press R2 to refresh. When you see a button push it to activate it and it will go after the one you started is finished. You obviously have a limited time to do this is, so when you push the button it will reset the time. It is really hard right now for me, but I only have two, so I think it is going to be a while before I can really do it while, since you can have up to 3.