Tell her straight up 'Hiya, would you like to sit with us, we are a friendly bunch and like to have fun. But if you want to sit alone then that's fine too." That's how I'd go about it.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.