Illegal Question:

If you were unemployed for a period of time, be direct and to the point about what you've been up to (and hopefully, that's a litany of impressive volunteer and other mind-enriching activities, like blogging or taking classes). Then, steer the conversation toward how you will do the job and contribute to the organization: "I decided to take a break at the time, but today I'm ready to contribute to this organization in the following ways.