“For introverts like myself, it takes energy to engage with other people. Doing so requires thoughtfulness. It’s tiring. Expending energy, for us, isn’t energizing. Please note: we’re not talking about shyness, some character flaw. The problem isn’t with the introvert — it’s with the demands you make on the introvert. An introvert can’t force an extrovert to sit quietly in a room and read a book, but extroverts (and the stigmas they’ve inadvertently created) can impose social demands with ease.”

I’m not shy so it’s hard to explain to my friends that I’m an introvert. Social anything drains me. I charge from solitude. 

4 Ways Technology Can Enable Your Inner Introvert - Philip Bump - Technology - The Atlantic