Let's make sure I'm actually doing this right. I sit on it when i'm at my computer and gently bounce. I don't have back pain or anything I'm just trying to convince Flump to engage. I don't put it up against a wall and sometimes I just gently rotate my hips. I keep reading things about making sure you don't fall off, but I feel very secure on it and have never once nearly fallen off and I don't have any problems getting on or off it, so now i'm not sure if I'm doing it right.