You have Venus conjunct Neptune..isn't Venus the planet which shows what and how you attract what you do? I believe I remember that correctly.
also, this maybe a bit far-fetched, but you have Pisces in the 12th house, that means that people with Pisces planets will feel "at home" in your 12th house-around you, and probably can read you very well.
Pisceans are very sensitive to people's "energies" and you have a water and earth-heavy chart, which probably makes you seem like you have a familiar vibe to them.
Of course, this is all assuming that they aren't attracted to you for other astrological reasons-like maybe having Moon in Scorpio, Mars in aries etc. that relate to your chart.
I know I have Venus in Pisces, sextile Neptune and Venus conjunct Sun and DC in Pisces, so I definitely attract a lot of Pisces.
Despite being a Pisces myself..
right, which reminds me..how sure are you of your hour of birth? Because if your Rising is Pisces, it totally explains it.
We're always attracted to people whose ascendants match our "inner" energies. I know I always fall for Pisces Risings.