To do tricks, hold down the Stunt Modifier button (Right Bumper by default on an Xbox controller) and press any combination of directions with either one or both analog sticks.

Left Stick only
Up: No Hander (landable)
Right: The Goon (landable)
Down: Suicide No Hander (landable)
Left: Double Can Can (landable)

Right Stick only
Up: Bar Hop (landable)
Right: No Footer (landable)
Down: Seat Stand (landable)
Left: Taunt (landable)

Both Sticks
Example: Left Stick Direction + Right Stick Direction

Up + Up: Heel Clicker
Up + Right: Shaolin
Up + Down: Lazy Boy
Up + Left: Rodeo
Right + Up: Ninja Nac
Right + Right: Corolla
Right + Down: Body Flip
Right + Left: Electric Death
Down + Up: Rock Solid
Down + Right: Tsunami
Down + Down: Superman Seat-Grab
Down + Left: Nothing
Left + Up: Double Nac
Left + Right: Cordova
Left + Down: Bike Flip
Left + Left: Nac-Nac


If I made a mistake or left something out, let me know in the comments.