dunno how to make it MORE fun, but from my experience, dun let
the following things happen which will make it LESS fun:
1. split to small groups. Started by a few dun want join the whole
group to play something, and then another small group leave also,
and so on...... ended up the whole class become small groups doing
all different things. like that wat's the pt of "class"
chalet?
2. someone get in to trouble, be considerate and legal, dun do
anything that make police come or make other ppls nearby quarrel or
even fight with u guys.
3. quarrel(for galz)/fight(for guys) with each other, this is the
most sianz thing....... will spoil the mood of everyone.
