I've told only a few of my friends about my status as a furry, here's some suggestions I think will help:
Always be willing to answer questions they may ask! It is important to clear up some thinking about furries that most certainly lie within the thoughts of the uninformed. If they don't know what a furry is to begin with, be willing to explain what you believe a furry is, and also explain what it means to you to be a furry
Keep a calm attitude about it, even if nervous. Some people have more problems with that then others, but I'm sure you'll be fine with that part
Also, super important: no matter what they may think, always believe in yourself and your values you hold. If you are on good terms with yourself, you can be unstoppable no matter the feedback
Hope that helps! Finnegan ~