For example, if you see a body with what might initially appear to be a male bone structure but it's buried in a manner that you already know was usually done for women and it's buried with artifacts that you can identify as being associated with feminity in that culture, you know that they had something going on with gender identity that you need to document.
For more information, make a few searches on Google Scholar. I'm not doing your homework for you. You're either claiming to be an expert on archaeology like in the OP, in which case why are you asking? or you're not, in which case the OP was a load of horseshit from the moment you and your buddies decided you were all going to try to push that point at the same time.