in when the engine is close to idle.
backing safely - because you cannot see everything behind your vehicle, backing is always dangerous. avoid backing whenever you can. when you park, try to park so you will be able to pull forward when you leave.
start in the proper position - put the vehicle in the best position to allow you to back safely. this position will depend on the type of backing to be done.
look at your path - look at your line of travel before you begin. get out and walk around the vehicle. check your clearance to the sides and overhead, in and near the path your vehicle will 