Actress Kristen Stewart got engaged to her girlfriend Dylan Meyer in November after two years together and although she is unsure how many "traditions" they will follow on their big day, she`s already chosen her clothes but wants to keep the details a surprise.

She told `Entertainment Tonight`: "You`re supposed to, I mean, I guess traditionally speaking and in this case, I mean, who knows how many ... I don`t even know detail-wise, I don`t know how many traditions we`re going to follow.