Dianna I agree with Storm
the perfume attracts them.
I remember one summer I was sitting at the patio
area and a wasp came, usually I am running round like a raving lunatic, but this time I sat very still. It landed on my leg and I could see its sting and I thought "this is it" Stung for the first time. And guess what it did?
It pooed on my leg and flew off.
Appartently certain colours also appear to attract bees and wasps.
BLUE clothing in particular seems to be associated with more unprovoked stings.