If you’re seriously considering joining a nonprofit board, says Phyllis Yale, it’s a good idea to make sure that your passions and unique abilities are a good match with the organization’s mission and needs. But since you can’t be absolutely certain of that in advance, she suggests a good test: Do some specific volunteer work at a project level—sorting out a business issue on geographic reach, for instance—and in the process really get to knowthe organization’s leadership, how its board operates, and whether its leadership is open to new ideas.