When you use WTF„ (Wake The Freak) for the very first time you will feel it start to work in minutes. In fact most people experience a burst of focus and energy that starts after about 10-15 minutes with a strong desire to take over a small country, or at least tear up the gym. You just feel that damn good! After the first set, play or round you™ll feel the NO flooding your veins and muscle mass bigger than life¦then the real chaos begins: Perform like a beast, pump like Mr. O, and focus like a hunting soldier in œ300.