you know how to lift the front wheel in a wheele.
its the same only you put pressure on the pedals with the brakes on and let go of the rear brake to begin a static wheele motion. once you get the front high enough put the rear brake back on. then get to those back wheel hops.
once you can do this real easy then try pedal hops.
it took me ages to get this, dont worry if it takes even a month to get it.