Don’t put your bare feet up on the seats or the bulkhead wall of a plane. And do not drape your hair over the seat back so it’s directly in front of the passenger seated behind you. This is even worse on a cramped regional jet.
The type of aircraft means there’s no seat back entertainment screen, so I suppose that is a saving grace: the hair isn’t covering up the show the passenger in the row behind was watching. But that also means they have nothing to distract themselves from The. Hair.