Complex sentence: Contains some sort of distraction, sometimes encouraging the viewers to turn up their speakers and lean in close, so the screamer is more frightening and after a while, a scary face pops up accompanied with a scream.
Split into simpler sentences: Contains some sort of distraction, sometimes encouraging the viewers to turn up their speakers and pay very close attention, so the screamer is more frightening. After a while, a scary face pops up accompanied with a scream.