Who are the Three Wise Men?

How do most Spanish children celebrate the Three Wise Men feast?

• They polish their shoes and leave them next to the Christmas tree for the Three Wise Men to put the presents in them. Then, they go to bed early to allow the Three Wise Men to come and fill their shoes with present...or sweet coal, if they were not good children.

• They knock on their neighbours' doors and say "Trick or Treat!"

• They eat biscuits and chocolate milk