Show & Tell is a section of the Practical Driving Test.
At the start of your test, the examiner will ask you two questions about the basic operation and maintenance of your car. One of these is a 'Show me' question, where the examiner will ask you to demonstrate the answer. The other will be a 'Tell me' question, where you will be asked to describe the correct procedure. There are 19 possible questions, and although they are simple and mostly common sense answers, it is important to understand the correct procedure.
Below are some resources to assist you: