Do not shout! Bear in mind that for a learner driver to react best to what you are saying they will need to be reasonably calm – and shouting will probably make matters much worse. Sort out your own driving! It is much harder to correct another person’s driving behavior if you own is a mess.
Please read the originial post here: https://www.scnforum.org/tips-for-supervising-a-learner-driver/