1) Type frantically, often stopping to look at the person next to you with an evil, determined expression.
2) Before anyone else is in the lab, connect each computer to a different screen than the one it's set up with.
3) Bring a chainsaw, but don't use it. If anyone asks why you have it, say, "Just in case..." mysteriously.
4) Start making out with the person at the terminal next to you. (It helps if you know them, but this is also a great way to meet new friends.
5) Put a straw in your mouth and put your hands in your pockets. Type by hitting the keys with the straw.
6) Try to stick a Nintendo cartridge into the 3 disc drives, when it doesn't work, get the supervisor.
7) Attempt to eat your computer's mouse.
8) Borrow someone else's keyboard by reaching over and saying, "Excuse me, mind if I borrow this for a sec?", then unplug the keyboard and take it.
9) Remove your disc from the drive and hide it. Go to the lab monitor and complain that your computer ate your disk. (For special effects, put some Elmer's glue on and around the disk drive. Claim that the computer is drooling.)
10) Look at invisible bugs and keep trying to swat them.