Should the internship sign be posted on the left or right?

The best position is to stick it on the bottom of the car, that is, above the rear of the car. This is both eye-catching and safe. I have seen some novice drivers stick on the rear windshield, which is wrong and easy to block the line of sight.

Stick it on the rear bumper, although the wind and rain will erase the handwriting, but the general logo sticker can last for two or three months. After three months, the novice will become the old driver.