HELP! IM GOING OVER THE GIRL I LIKE HOUSE FOR THANKSGIVING!!!!!!!!?

I'm really excited to go over this girl i like house for thanksgiving. the only problem is is I'm a little nervous, i don't know what I'm getting into. i dont even know her moms maiden name. i want to smell good and be fun at her house and clean..what should i do? How should i even eat? I know the rest of her family will be there and that's scary? What should i wear? Should I bring a wingman?