“Pass away the pointless hours with our list of things to do when you’re bored!”

Couple random ones:

Use your secret mind power
(Amusement Potential: 5-10 minutes)
Pick a passing by and try to use your mind power to command them do something, like drop their bag or knock into someone. The law of averages dictates that sooner or later one of your mind commands will come true, so you can convince yourself that you really have super human powers and waste even more time trying them out.

Pretend to be a car
(Amusement Potential: 1-3 minutes)
Make appropriate revving noises in your head as you walk along and add a racing commentary as you pass strangers in the street. Use blinking eyes as indicators for extra authenticity.

http://www.urban75.org/useless/bored.html
http://www.urban75.org/useless/bored.html
http://www.urban75.org/useless/bored.html