If you could get the gift you REALLY want, then Santa would eat your plate of cookies after he dropped your dream job under the tree. (If the tree isn’t your thing, just insert whatever symbol of your faith or spiritual practice you’re celebrating). Do you know what you're looking for this year in terms of a job?
The real key thing in an interview is that they are looking for someone whom they would want to work with and be stuck in the adjacent desk every day. So, relax and show some personality and have some confidence.