The bookstore provided extra reasons why someone might go there other than just to explicitly meet people. People do have different personality types [1]. [1]

The bookstore provided extra reasons why someone might go there other than just to explicitly meet people. People do have different personality types [1]. [1] https://en.wikipedia.org/wiki/Extraversion_and_introversion https://en.wikipedia.org/wiki/Extraversion_and_introversion