I found that if you are going to put your legal name on documents and then show up in opposite sex clothing, maybe they should have said something during the interview or right after. It shouldn't make a difference during the interview but does change how you would want to be addressed. I remember a time in school when I didn't know and I justed the given pronoun of she and was yelled at by another student for not using the pronouns he, him. I was mortified that I was yelled at in front of 15 students. So I feel it is best to be upfront.
