Start smaller, this may sound stupid but start on a curb, lean way back and pull the rear brake as you would for a tap! as you get bigger, try tapping the front wheel on the object to boost you further! Ben
London is good- went there when i was a bit younger and crapper on the bike Birmingham- i love as i live here and takes 20 mins to ride to and because as i progress, it can still challenge me! Ben =D