Most agencies will provide an orientation before handling the car keys to you. But in situations, like when you are in a hurry or did not get the exact car model you reserved or need a replacement vehicle, it is always good to check with the representative if everything is in proper condition. Also do check if all paperwork is in good standing and easily accessible. Tip: If you can, take pictures or shoot a video of the car before it was lent to you. This will help you later on to detect any scratches.