Introvert and Extrovert

I did some research on the internet a long time ago
I am an introvert person
Introvert is a personality that is quieter than being talkative
It does not mean introvert can not being sociable
Of course they can but they have limited time
They need to charge their battery by indulge themselves in something they like
Sometimes, my friends misunderstand me. They always assume if I am being quiet, I am in a bad mood. Okay.. The thing is.. That kind of misperception makes me turn into a bad mood mode. This sentence will pop up in my head, what do you know about me?! Just shut the fuck up!
Just because I'm not talking doesn't mean I'm in a bad mood. Sometimes, I just like being quiet.
Continue..
Or the introvert people do not really like the crowd
For example..me.
I like shopping, so I will go to the mall, but I do not like to go out from my house too often like some my friends do. There are my friends who like to go out from their house almost everyday.
I prefer stay in front of my laptop, read books, listen to the songs and sing at my home. Feel more pleasant.
Well.. Every person has their own versions of happiness, right?
Sometimes I do envy with the extrovert person, because they can easily get new friends.
But what can I do? I am born this way.