Click at the circles at the right timing, click at the begining of the sliders at the right timing, then hold the button and move across the slider with the designated speed (not as fast as posible, but with the speed of the "ball").Well this map is 4.66 star difficulty (insane), you wont start from that difficulty but begin with easier ones and gradualy go for harder so it's not so hard to start. Actualy starting is not a problem at all, the problem is stopping.... litteraly way too addictive and immposible to stop after you played for a while.I'm really bad for the amount of play I did, but just cant stop even though I know I'm too bad at it xD