[Femminator]

Maybe starting off the presentation with signs, with words on them like Butch, Femme, Androgenous, Stone, Transgendered, etc. Ask the people present to write down what each of these words means to them, ask them what stereotypes they associate with these words. Now, you address each of the stereotypes of those words. Maybe even pics of people who embody the gender lables you present. For butch there are many people you could choose from, KD Lang, Rachael Maddow, even Ellen, the trick is to make sure that you get several different looking types of butches so they get that there is not only one type of butch. If you get this for each label, people will see that their narrow views of a word is not correct. It may not change minds, but it definately will spark some conversation.

Good luck.