You certainly could! Giving a thoughtful and personal gift can be a great way to show appreciation for your boss's support and guidance throughout the year. However, it's important to consider the nature of your relationship and whether a gift would be appropriate. If you feel that a gift is the right choice, it could be as simple as a handwritten note expressing your gratitude or a small token of appreciation like a coffee mug or a plant. Just make sure the gift is something that is meaningful to your boss and reflects your relationship.