I just thought of something while laughing to myself about something funny I remembered. Normalfags think it's weird and downright insane for people to laugh while alone or even worse if you're around people and no one else is laughing. That means they don't laugh because something is genuinely humorous to them and tickles their senses, but because and only because others around them are doing it in an "appropriate" setting. It's purely a social gesture to them and nothing more.
This shit is like how dogs never wag their tails when people aren't around. While this certainly isn't the first or only reason I've had this thought, I'm certainly questioning whether normalfags are sapient or merely NPCs performing actions off their programming and nothing more.