triangle to get back on and press x to drive it in before the door closes again. with a car, keep pushing it towards the garage door until it opens, then keep pushing it until it is inside.
when you steal a bike and the radio is on, there will be no noise from the bike when you go. note: this only works if you drive really fast. once you brake, the radio plays.
aim at a person in a car just slightly above their head from a distance. when you shoot them they will get out of the car. it will look like someone kicked them out of the car, but 