My parents are heading off to vacation for about 20 or so days, even though I'm done with High School, I don't have a place of my own, so I have to stay with my older cousin. She's about 37 give or take, and is single. This is the first time that I'll be staying at someone else's house for a very long duration of time. I'm a little concerned that it's going to become quite awkward while staying there, and I also feel quite weird staying there as well. What exactly do you guys do when you are staying at someone else's place for a long time? Obviously I need to be neat, and not leave a mess wherever I go. I'll have plenty to do since her sister lives upstairs and has a kid that will need watching. But how specifically would you act?