Humans are weird
There are so many reasons as to why humans a weird! Fear for example, a lot of the time we scream or yell but we also sing when something jumps out in a video game, some humans just yell swear words… I know some people, including myself, who swear in a language they don’t even speak!
Also I have seen people talking about how weird adults and children are but what about the teenagers?!?! Some will scream whenever they find out a person likes the same thing they do… others will full on death stare at you if you too close!