I just looked at it. I can see why you’re confused. It looks like in the left hand line the dots over the note indicate to play those notes very short with the thumb and the hand muffling the sound after each note. But when the right hand octaves come in I think you are supposed to just play the octaves without muffling. Dots over notes usually indicate to not connect. But that’s the only way you could play those octaves anyway. I would try it in a variety of ways and just do the one that sounds best.