(The video player has a ‘Full screen’ button to make it bigger)
The intro looks a little complicated, but it’s really just the same right hand melody repeated over changing left hand notes. The only change in the right hand is in measures 7-8 and 15-16. Now look at measure 33-38. You can think of all the G notes that the right hand plays as filler notes, because they “fill in” the gaps between the higher note melody.