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Its very important for a get to try and blend as much as possible and not look weird or stand out. Your Rabbi has your best interests in mind. Many people in the street have no clue what they are talking about one way or the other so be careful who’s advice you take. I know geirim who became Chassidish and thus dress Chassidish. I know geirim who are Yeshivish or not Chassidish and wear a hat and jacket. Either way the main point is to blend and become part of the Klal and part of the kehilla (congregation and synagogue) where you daven regularly. And if you don’t have a shul where you daven regularly go find one.