"Without a tattoo they were approached 10% of the time, but with the tattoo this shot up to 24%.
Not only that but the tattoo increased the speed with which men approached from 35 minutes up to 24 minutes"
http://www.spring.org.uk/2013/06/a-womans-tattoo-doubles-the-chance-of-a-man-approaching.php
"He was told to approach women. "Hello. My name’s Antoine. I just want to say that I think you’re really pretty"
Then he smiled and gazed into their eyes. The poor chap had to do this in three different conditions while holding either:
a guitar case,
a sports bag or,
no bag at all.
What happened was that when he wasn't holding anything he got a number 14% of the time.
The sports bag, though, put women off and dropped his average to just 9%.
It was the guitar case that did the trick, bumping up his chances to 31%.
http://www.spring.org.uk/2013/05/the-incredible-dating-power-of-a-guitar-case.php