As a therian I'd use to do a lot of body language and sounds, but was bullied out of it, now it seems like if I do even when alone someone will attack me but I do show it from time to time still. As a fur I enjoy roleplaying, plus there's also elements of my human life I can introduce.
There's of course the internet and how much my hard drive on comp and other devices is full of furry and furry-related stuff.
But to demonstrate I am furry, I will just let you observe what site I am one right now