Poker Chick doesn't buy into this stuff, but here's what the latest email chain had to say about hers (and the mini's) sign:
The Sweetheart - Optimistic and honest. Sweet personality. Very independent. Inventive and intelligent. Friendly and loyal. Can seem unemotional. Can be a bit rebellious. Very stubborn, but original and unique. Attractive on the inside and out. Eccentric personality.
If you know Poker Chick in the real world, we ask that you at least close your mouth as you guffaw at the word "unemotional".