Options when you're bored

Wanna hacky sack in the picnic area?
All we're missing are hackysacks and a picnic area!
Wanna gossip in our emergency evacuation roll call area?
Wanna fake a fire drill?

We can call each other, then yelp, "OHMIGOD!", then run to stairs with serious looks on our faces. Yell "SAVE YOURSELVES THE END IS NIGH!" Then run down the stairs.