maybe ask her if she would eat some brownies with you. if shes worried about smoking because its hard on your lungs and shit, just make some brownies and let her try one. then if she likes the feeling slowly start introducing her to smoking herself. but never lie to a girl, i got into big trouble doing that with a girl. told her i quit then got arrested for it.. but now after talking to her about it, being open when i do do it, she wants to do it with me now. just be patient and if shes worth it, be open wth her. the sooner you tell her the better.