That's the point. Looking like a non-nerd sounds like selling non-apples to me. One possible way to “look like a non-nerd” is to look like a '80 skateboarder, but that wouldn't achieve your actual goal, so what you're actually trying to do is more complicated than that.

And what do you mean by “nerd” in the first place? Someone with a very high IQ? Someone with poor social skills? Someone who studies or works in a hard science or maths? Someone who couldn't play football halfway decently to save their life? Someone who is into certain particular games and works of fiction such as (say) Dungeons and Dragons or Star Trek? Only a few of those things would I want to advertise the opposite of via appearance. (Your age, gender and social circle are also relevant to that.)