How did your blood sample come out exhausted from all the Interactions it had to make.
Each there own I suppose.
Even though Extroverts and Introverts to exist sure there is rarely one that is 100% of each but people who tend to be more Extroverted or Introverted as there are people that can't handle social interactions very well for various reasons those are also Introverts not necessary out of choice but nevertheless.
Than there are people that just like to be for themselves with only few interactions and than we have the total opposite the social butterflies who need and want as many social interactions they can get.
Some may say no response is also a response
Its the essence of a gamer after all ;)
Oh I know that feeling as a Introvert back when I was a kid Teachers and Kindergarten Stuff assumed there was something wrong with me as I stayed with myself and not interacting with other kids constantly complaining about it to my mom.
I hate how Society treats Extroverts as the norm and Introverts as something sick and wrong as if is wrong to want to be by yourself and relax.