Women go through slutty phases where they just don't care how many partners they rack up. I've found that a chick who suddenly cuts her hair unusually short is more often than not embarking on a slut-phase; especially if it coincides with a break-up.

This holds true when looking back at the past as well. If you see pictures from a period of time where a girl suddenly had a short haircut (anything less than just touching the shoulder) then it's grounds for further inquiry. Most of the time you find there was some sort of relationship drama or other man-trauma. Odds are, it turned her into a mad cock-vacuum. These phases do not count towards N, as far as she is concerned. Keep that in mind as well.

What other tells have you all discovered that a woman is in a slut-phase?