Generally, females in horror movies are vulnerable and unable to fight back. When a female character is only there for a scene or 2, their personalities are usually a predictable stereotype of women.
In out opening, we abided by these conventions by making our character seem feminine to a degree (Make up, gossiping on the phone, etc) but also strayed by giving her short brown hair rather than blonde and gave her glasses to make her more of a random victim than the predictable eye-candy character.