Eyebrows themselves express a lot of emotion.
Surprise

, Anger >

, Despair :'(, Confusion ???, Doubt :-/, and more.
I expect that most figure carvers have created a face that looked angry and just couldn't figure out why. Â*
(My favorites are angry Santas) Â*
Usually the reason lies with the eyebrows, they may be too heavy, or too low. Â*Try this, lower your eyebrows and guess which emotion you are conveying. Â*
Now raise them a little, and add just a tiny smile, there, you have a stupid grin.
That is what Santa needs.