I wish there was an Introvert Manual that I could give to just a few people. Usually, it doesn't matter...most people seem to roll with people's personalities and not react to someone's extrovert/introvert tendencies with self-deprecation. Goodness, though!!! There are some who absolutely can't understand a personality other than their own and completely freak out at someone's need for space. Somehow...usually because they are more shame-based, sadly...a need for even 30 minutes of "alone time" turns into an insecurity flare-up. The over-reaction makes the situation worse.