I saw this on Cailin's blog, who saw it on Bettina Grange's blog and thought it was fun.
Here are the directions:
1. As a comment on my blog, leave one memory that you and I had together. It doesn't matter if you knew me a little or a lot, anything you remember!
2. Next, re-post these instructions on your blog and see how many people leave a memory about you. It's actually pretty funny to see the responses. If you leave a memory about me, I'll assume you're playing the game and I'll come to your blog and leave one about you. If you don't want to play on your blog, or if you don't have a blog, I'll leave my memory of you in my comments.