They know if you've been bad or good, so be good for goodness sake. You can use this ability as a bonus action once before taking a short rest. Using this ability, you gain the knowledge of one (1) creature's alignment. 

Because you are small, nimble and trained by Santa in this art, you can squeeze through spaces as small as 1 foot in diameter. 

You have advantage on saving throws against being charmed, and magic can’t put you to sleep

 Your ability scores each increase by 1.

It is currently unkown when christmas elves reach adulthood or if they even become adults. It is also unknown if an christmas elf can die of old age.

Christmas Elves are loyal to Santa Claus. They uphold his law, but in a playful way. They can be tricksters if Santa does not instruct them carefully enough. Neutral. 

Christmas elves are between 2 and 4 feet tall and average about 40 pounds. Your size is Small.

Your base walking speed is 25 feet.

You can speak, read, and write Common and Sylvan.