Grease pencil

Hello guys, I m new to blender and have a question. Hope this is the right category. I don t really get the grease pencil. It s nice to draw with this thing but when try to render it it s just not there. I m absolutely sure that s a stupid question, but anyway it drives me crazy right now. How can i get the grease pencil drawing or animation out of blender ?

Thanks for your help!