The `Twilight` star - who recently split up with boyfriend of nine months Joe Jonas - doesn`t like to "fuss" about with her own look, but does enjoy getting pampered if other people are responsible for her make-up and outfit.
She said: "I love having my hair and make-up done, but I`m really just a 15-minute girl, throwing everything on with no fuss."
However, the same speedy process doesn-t apply when she has to get into the character of vampire Alice Cullen in the `Twilight Saga` movies.
She revealed to InStyle Hair magazine: "The whole process takes about two hours.
"My hair is pretty thick, and we wrap it and put it under a wig. To get it to fit so I don`t like look I have an alien head is a talent in itself."
Earlier this year, the 24-year-old actress admitted she doesn`t ask her `Twilight` co-stars for red carpet fashion advice.
She said: "The `Twilight` cast don`t consult each other about red carpet looks, so it`s a surprise on the night. We`re like, `Oh my God, I love your outfit.` "