My Evil Twin

Recently been accused of nattering
Guess old age has finally caught up
But when I stop to think about it
I've been nattering since I was a pup

I'm really the only one listening
So I've really got a built-in crowd
Amazing are the stories I tell me
Sometimes I talk out loud

People often stop and stare
Like I'm some strange kind of kook
When having conversations with myself
Most passersbys get spooked

Take me or leave me I am who I am
I'm happy in this skin that I'm in
Can't change the person I am inside
Perhaps I'm my evil twin