I'm having a friend over for my birthday any ideas what I could do?

I'm just having one friend over for my birthday because I'm a loser and no one likes me. You don't have to bring it up in the answers thanks very much. Anyway, on the day when she's coming over it's going to be cold and raining so hopefully no outdoor activities. I don't just want to watch movies at home or go to the cinema or shopping or something because we do that a lot. Is there anything else that would be fun? Thanks