What does one do at a Christmas market?

In my case - mostly eat random "Christmas" food and drink hot beverages. :-) But you can also buy lots of toys and Christmas decorations there.

In Estonia you can buy christmas themed clothing, accessories, and christmas foods like blood sausage and sauerkraut. Also glög. Lots of glög.

Buy Christmas stuff you can store for next year and never use or use just once. Or maybe drink some gluhwein 😁