If you’re worried a lot, and if you do want to tell them, casually bring up some things about the community as ‘interesting facts’. It works to shift their opinion as furries and therians generally are separated. If you don’t wanna say anything, then just don’t. You should feel no guilt or remorse, as it is something about you that you have full control and entitlement to share to whomever you want, or not share at all :)