To wrap a hat for Christmas, first, you'll need wrapping paper and tape. Then, you'll want to start by laying the hat flat on the paper and then wrapping it tightly around the crown of the hat. Next, fold the excess paper over and tape it down securely. Then, you'll want to take the two ends of the paper and wrap them around the hat again, making sure to tuck the ends under the hat. Finally, tie a ribbon around the hat to complete the look!