are the 6 friends shown on facebook timeline chosen randomly?

[Kyrie]

you know that sample box of friends on facebook timeline that always displays 6 friends...well i was wondering if its done based on the people you interact with most, the people who visit your profile most or the people whose profile's you visit most, or if its just random. Cuz everytime for me its usually all my best friends that appear, but a frequent appearence in that box is my crush, we have had literally no interactions on facebook, but i do tend to stalk his profile quite often. I notice i appear in his friend box as well, so i got a glimmer of hope that maybe that means he visits my profile often? Not sure...what do you think?