Your day will be somewhat dictated by the whims of someone who is in authority right now. Luckily, this person is not interested in making your life difficult; rather, she or he is focused on personal goals. So don't jump to any conclusions about what will be asked of you -- and don't volunteer for any project or role. Wait to be asked, and be honest about the amount of time you'll need. If expectations seem unrealistic, you have to say so.