So to do your hair like Bella Swans you need to.. Take a shower/Bath. Wash your hair. Wait to dry. Curl your hair. Brush your hair to get that wavy look. To get her look from Twilight grab a hairband...
there are many: wear a head band wear a head band again and again wear the head band again wear it AGAIN! and....finally! WEAR A HEAD BAND!from a professional hair dresser!
Her hair is brown, a little long, wavy. You just part it in the middle (a little off) and make it a little wavy. If its not brown, dye it.
To get it wavy, curl it, then run your fingers through it.
Act shyly, and awkwardly. You should blush often and be a total klutz like Bella, stumbling and dropping things. Also you can't be good at sports. As said before be a klutz with that note fall and...