How to start up a convo on facebook with this girl that likes me ( I think )?

DON'T. Unless you are good friends with that person, facebook is probably the worst place to start a conversation with a girl. Guys do that to me all the time and it freaks me out.

I realised I have you on facebook and have never spoken to you on here.

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.