I shouldn't be insulted because they were a bunch of stupid high school girls...I mean I don't think I'm particularly ugly, I'm at worst average looking. I didn't do them any harm...I just got called a nerd.
It's kind of eye opening...
Most Helpful Girl
To answer your question, typical public would think a girl "seem" nerdy is wearing specs, carrying books, conservative in what they wear, a bit more low key, talks about academic and theoretical stuff a lot, (maybe) plays music rather than being more sportsy, enjoys studying and researching sciences, "look" socially awkward (like not looking into people when talking or prefer to stay in the background)...etc
What I think about this situation: Those girls are playing with your minds and plain mean. I've been called like that and these idiots, with nothing better to do with their time, are purely playing mind games by throwing "absurd" remarks and judgement on you to second guess yourself. How you look is subjective. Behave and present yourself well from the outside and the inside, and you have nothing to worry of.