The How To Look Good Naked presenter, who released his own autobiography last year, is currently travelling around the country teaching women how to dress to flatter their body shape.
Wan told The Daily Telegraph: "I want to help women realise fashion is fun, regardless of your shape. Whether you're a boyish beanpole or curvalicious, you're a goddess and should dress the way that makes you feel amazing.
"I definitely think we shop according to convenience, which makes it really easy to get into a shopping rut, where you go to the same stores and buy the same clothes. Every now and then you need to step out of the fashion comfort zone and take some risks."
Wan also revealed that he loves "the Australian approach to fashion", saying: "[It] has a lot to do with your climate. Lots of Aussie designers draw on that and create clothes with a relaxed, summery feel, which are not only chic but very flattering to women.
"Although, I have to say, to pick out an Aussie bloke in London, just look out for the board shorts and flip flops in winter!"
Last year, Wan admitted that he gets scared that his fans will get "bored" of him.