Styles of yoyoing are denoted 1A, 2A, 3A, 4A, 5A. See YoYoExpert.com - Basic Styles of Play for more info. Video was here:
1A is string tricks usually with an unresponsive yoyo.
2A is two handed looping style. By default I assumed that because you were learning looping you wanted to learn 2A and doing it two handed, but that might have been a bad assumption on my part.