Drill the points of the compass, but rather than arrows or flashcards, get students waving their arms about! So arms up for North, arms right for East, etc. This will get confusing as the teacher stood at the front of the class will either be doing East and West opposite to the children, or could mirror it…
I found that it woke the children up, and was a good kinaesthetic activity. There was some confusion over the East/West, but I did point out the rather large E on the wall (from MFL Sunderland), which seemed to help.
I then got one student to be the compass pointer – I had NESW on the walls and she had to choose where to stand and students had to say where she was.
Good fun, slightly chaotic, not much preparation, good results!