Standing with the bike beneath you, bounce it up and down by pressing on the handlebars. When you get a good rythmn going, feed out the clutch rapidly when the front end is at the bottom of its bounce. There are several fun variations that can help you overcome standard smokey blues. Try doing donuts. You can also wag the rear end of the bike back and forth to create neat zig-zag designs, or try your initials.
Cops are just philistines.
One of my favorites is to start a burnout, build up a huge pile of smoke, and then push the bike backwards into the stinking cloud, where I disappear, then let go of the front brake and launch out of the cloud, straight into the waiting ambulance. The smoke clouds are filled with noxious, toxic gasses. These fumes may be more dangerous than the glue you usually sniff, so beware. When a tire is burning down to the cords, it throws molten chunks of rubber that can severely bug people who don't like their flesh in strips. When a tire has burned that much tread, it comes apart, throwing straps of tread and rubber, at which point you should be prepared to pull in the clutch and hang on.