An introvert and an extrovert walk into a bar. (No, this is not a joke.) It’s a Saturday night, and the place is packed. A cover band is rocking on stage, dozens of people are talking loudly over mugs ...

Whenever I rendezvous with an extroverted friend, I feel a pang of anxiety as an introvert. Will I have space to be my slow, quiet self? Will I have trouble keeping up with their chatter? Usually the ...