Take a friend and have them wait in the car, or in sight but not with you. Go to a public well lit place, preferably midday, a mall, or grocery store, or something similar.You have to assume that most of the time the other person is thinking the same thing as you, as most people are.Is there any specific reason you re concerned, or just being cautious?
I craigslist all the time, and I always take someone with me or meet in a very public place. It would be a very wise decision to take someone with you.