I'll be following the last few W/C rounds, but during the break took some time to get refreshed on the finer points:
DIVING 101
1- Tumble uncontrollably to the pitch after a "flagrant" foul
2- Writhe in sheer agony until a Yellow Card is issued by the Referee
3- Wait approximately 5 seconds; when the coast is clear, get up & rejoin the play.