Your plan is pretty solid.
maybe 2 negs, you dont know who she is and you don't care about the show. and yeah go into that you and her wouldn't get along. talk about why: for example famous people are shallow, Go into make up and how your ex used to spend hours in front of the mirror to look perfect, while you were waiting in the living room with your other mates while watching some weird movie. Just let your lips do the thinking.
As for kino do the normal escalation, ALWAYS touch the outer back of her upper arm while greeting her, shake hands, tell her she has a good shake, and how that says something about the person or neg her with it. mind not to neg too much watch her reactions, you should see fairly well when it's too much. or just REALLY overdo it and joke untill she does the soft bitch slap or punches your arm. then during convo just touch her shoulder do a lil push against it when you neg her or something. touch her knee, take her hand and hold it a short while. after that it should flow quite natural and spontanious. don't go straight for a mouth kiss get one on the cheek first.
Famous or not famous it's all the same
think thats about it.