it's just a wheelie but you don't pedal.
first learn how to do a sit down wheelie and use your back brakes to keep from falling over backwards.
then find a very steep hill and , with no speed, get in the wheelie position. have your back brakes on FULL
slowly let your brakes out so you roll forward. figure out where the balance point is.
when i ride anywhere from point A to point B i practice manuals.
just pick a spot in the cement or dirt that you plan to pull up and spot a place in the distance you think you can keep the front end up to.
try, try, try again....