• Select first gear Over-grip thottle so you can get at least three quarters movent in one twist. 
• Grip the tank with your knees [1]. 
• Steady yourself and cover the back brake. 
• Accelerate fairly slowy in a straight line up to about 22-25 mph [2] 
• Do not dip the throttle to compress the front. Twist the throttle in one fast sharp movement.
  

The front *will* come up.

At first the bike will just shoot forward but it will start lifting as you gain confidence with your throttle. The secret is to really give it a sharp twist

You will find there's about a quarter of an inch of movement which will control the height but this takes practice. When you get it right you will be able to keep it up and even produce a slight nodding movement to wave at other riders.. The next stage is snicking through the gears.

[1] To prevent you hitting your balls when you land.
[2] This should bring you on to the torque curve, too fast and it won't come up sweetly.