This is quite a standard dare you might have done in the past. If not, well...
Get hold of a nice brush, and 2 color paint, acrylic for example dries quickly.
Preferably blue and white.
Then it's time for a jog. You will get rid of the jogging shorts so don't wear something expensive.
You jog through 5 places, like a gas station, a walmart, a restaurant, a park.
in short places where people hang around.
Stop and get rid of your shorts in a dramatic way (you only wear shorts, top, and shoes) like ripping to pieces or setting fire to them, and then work on your new painted on shorts (also use a mirror for your backside, it can be tricky to see) then let dry and jog the same way back.
When you arrive at the 5th place you passed before with people, make some natural stretching routine in front of them with your back mostly turned to them: touching your feet standing straight, lifting each leg up behind you, and with legs wide apart alternating between touching each foot, then finally do a bicycle ride on your shoulders with legs in the air. Exercise and stretch until somebody notice you, but pretend to be totally indifferent to them.
Then away to the 4th place where you repeat your routine and so on!
Use paint that stays on, there is naughty paint that can't handle sweat!
