For women: you have a great deal of control over how other people react to you. You can take some responsibility for how you are perceived.

personal anecdote: I'm a female maths undergrad, and most of my social circle is male. First term there I concentrated on making friends, so I adopted casual, unisex clothing styles. I attracted male attention only when I dressed in a stereotypically girly way for fancy dress parties and social events.

Second term I was on a mate hunt, so I overhhauled my wardrobe and started wearing skirts and behaving in a mate-attracting way. According to my now OH, that's when he "realised I was a girl".

So basically if you don't want men to view you as a potential mate, it's helpful to not act like one. Think hoodies and ill-fitting jeans. And if you have got attracting mates in the back of your mind, and your body language shows it, then you shouldn't be surprised if men notice you.

Second piece of advice for women where it applies: tracking your menstrual cycle is the easiest first step towards luminosity. Different hormones induce different kinds of bias, and also prompt changes in body language and attitude, which may cause people to react differently. The effects can then be harnessed or corrected for.