Adam Grant believes that nice guys - and gals - can finish first. The young Wharton management professor, just 31, ... has spent years studying how and why certain people succeed in the workplace. It's more than just hard work, talent, luck or looking out for No. 1. He believes that it also takes a generous spirit. In his new book, Give and Take: A Revolutionary Approach to Success, Grant outlines three types of workers: givers, takers and matchers. Givers, he says, are generous about helping others, including lending a hand to junior employees, without expecting something in return. Takers may excel at "managing up" with their bosses, but they can't be bothered with their colleagues and underlings. And matchers fall somewhere in between that spectrum, handing out favors but expecting reciprocity, too. In a recent interview, Grant talked about how to be a giver. Q: What is the first step to becoming a giver? A: The first step is to figure out the people you care about helping and the forms of giving you enjoy. The evidence shows that giving is rarely sustainable when you're doing it out of a sense of guilt, duty and pressure. For some people, (the most meaningful form of giving) is to be a connector and to make an introduction, or for other people, it's sharing knowledge or expertise, solving a problem or becoming a mentor.