Ever wonder why people respond differently to requests? One person will immediately do something – no questions asked, and another person might just downright refuse for seemingly no reason. Frustrating, right?

Well, this week we're reviewing The Four Tendencies by Gretchen Rubin, which will take away a bit of the mystery behind why we behave the way we do. It all comes down to how people respond to expectations. People are either an Upholder, Obliger, Questioner, or Rebel.