TC
I would go down to Woy Woy on a calm day. The ramp can be busy but its a nice easy ramp to learn on with sand on either side to park the boat whilst parking up.
As said go early, pick your moment, don't afraid to ask others for help (there's often a a few blokes waiting for their mate to launch) but above all take your time and do not feel rushed. After a few goes it becomes second nature and before you know it the young fella will be all over it and you'll be sitting in the car waiting to park!
C.