Have you ever met a person who possesses enough charm and wit to win someone over in a matter of seconds? It can be anyone from the affable car salesman at the local dealer to a gregarious classmate to the amicable hiring manager you meet with for a job interview. Many people with sharp people skills are quick to employ them in order to get something they want, whether it's a sale or date. In psychology, the mere exposure effect is a phenomenon whereby people tend to develop a preference for something merely because they are familiar with them. In other words, familiarity breeds likeability. That's why, contrary to popular belief, things like follow-up calls and thank you letters can have a powerful effect so long as the individual made a great first impression. What's more, they will do little things to further build rapport, from pretending to agree with you on a wide range of issues (when deep down they diverge with you on many of them) to making it seem they...