Pagan, smagen, it's just customs people had before christianity, nothing to get excited about. It's really just a way for the cult to set themselves apart and feel "holier than thou" and also completely arbitrary, as they accept many things of so called "pagan origin"" while rejecting others for no good reason. It reminds of when Jesus warned about "practicing your righteousness before men", all for show.
When people say "bless you" when you sneeze they aren't worried about demons, it's just a social pleasantry, nobody cares about the original meaning, when a JW brings it up It just makes them seem deranged.