Rounds include, Drawing, Music and Mime.
5 people stand in individual pods with walls on either side. The first member is given a word or object or song. They then have 10 seconds to convey that information to the 2nd person. The doors then shut and the 2nd has to convey what they have received to the 3rd.
Basically it's Chinese Whispers.
It's interesting and of course entertaining to see how in under a minute the information can be distorted and confused.