I read at the walkthrough that you have to buy cookies before aunt Kira arrives and specifically until Thursday. How you can do this ? I talk to Lisa "You look weird..." a few times but without success. Now i am at Wednesday 1 day before the deadline and the chances of success are only 14%. My persuade skill is 147 and Lisa's mood and relationship are very good/warm. The only thing that i can do is to buy the silk bathrobe to improve the relationship but i don't know if this help. And the save-load trick is not working in this game (i always take the same results).