Don’t ask her what she wants.
You're not Santa Claus. You shouldn't take her on your lap and ask her what she wants this holiday season. Regurgitating someone's wish list in wrapping paper is not thoughtful. It's your job to figure out what would make her happy.
If you're completely clueless, you can ask her to point you in the right direction, but the actual gift you end up buying should be something you chose, not something she asked for.