So you are on a chat room and looking for some of the best lines to use to chat up some of these horny grannies. This is nothing like chatting up real grannies in the real world; this is online. Ok, so the next thing to do is to put yourself in her situation, so imagine you were a horny granny, sitting on an online chat room and simply waiting for a man to woo you into bed, what would you want someone to say to you?