Just learning this character and the first thing I did was learn this move and the one for her square boost. I picked it up and can do it without fail after 5 minutes. Couple of different ways to do it. The first way I tried, I messed up a bit but got it down, you do the move as one whole motion by sliding your thumb (on pad) Start at up and slide down to forward. Kind of like doing a skewed version of a half circle forward fireball or something to that effect except as if u held the controller sideways. It works both back and forwards for the square of fans. Now the easiest method for ME anyway, since I am also a tekken player is treating it like a mishima electric or wavedash (if anyone has played tekken) I hit up and then quickly do the D,B or D,F motion. It's easy for me because electrics in that game are done F, (Neutral) D, DF+2. It's kinda the same concept here except the (forward) motion is up instead. Doing that I got em 100% of the time.