Post a comment and...
1. I'll respond with something random about you.
2. I'll tell you what song/movie reminds me of you.
3. I'll say something that only makes sense to you and me.
4. I'll tell you my first/clearest memory of you.
5. I'll tell you what animal you remind me of.
6. I'll ask you something that I've always wondered about you.
7. If I do this for you, you must post this on your journal.