But saying "victims have certain styles of walking" or similar statements is silly. There have been criticims of early victim selection studies anyway, and to be honest, if you want to avoid being mugged, the easiest way is to avoid population centres and comercial centres from 6pm to 1am-ish, especially on a Friday and Saturday night. However, there are lots of reasons to go to those places at those times.
I think people like to believe there are ways to avoid being victimised, things they can control. This is normal, as humans we have evolved to try and make patterns out of randomness and to believe "it won't happen to me, because..."
I don't think it's helpful to compare rape and mugging- 75% of muggings (roughly) happen to men, whereas most rapes happen to women. Most muggers won't know their victim at all. Most rapists will.
With regards to muggings, age is a factor, most victims are young, under 25, with 20-24 being most at risk, then 16-19. A 20-24 year old male isn't someone you neccessarily think of as being vulnerable and they probably don't "walk like victims". It might be oppourtunistic- they are more likely to be around when muggings occur.
According to Wilson (1984) most victims are selected on the grounds of the resistance they will put up to the mugger- so people who look wealthy, or look like they don't value money are chosen, as they will be more likely to hand over their cash more easily. Some muggers said they didn't chose women, as they were more likely to "get hysterical and scream".
You can't focus on one factor and say that was what made them the victim. Most people are probably just in the wrong place at the wrong time (and alone or in a small group).