Ahh the opportunity for redemption. After being bested by the chocolate, I needed this one.Force jump from a sitting position. I'm not sure when this would be used, but it is very much like levitation, but with greater acceleration provided by Jedi-flexing the buttocks. A quick tensing of the muscles while levitating will propel you bodily upwards out of your seat.
Three pictures taken 0.22 seconds apart show this technique in action.