On Facebook Timeline, what do the friends that are shown mean?

[Bailies]

On Facebook’s new Timeline, there is a box, beside maps and photo’s, that shows six friends. I’m just wondering if these friends are the ones that visit you’re profile or the profiles you visit because I usually have the same friends every time. And just below that it shows like eight friends and some of them are the same ones shown in the box. If it means nothing, just tell me. I'm curious.
It's usually people I would talk to regularly, like everyday at school!!

[.]

It could be that, or the layout looks like that. That's all I could say, I'm not much of a Facebook user, even if I do have timeline.