Working memory of your kid is improving with every passing day and so is his ability to listen to your instructions carefully. He is big enough to pay attention to what you are saying and even follows the instructions you say.
What you need to know:
As your kid is relying on you for instructions, you need to be very careful while giving him any task to perform. Any wrong indication or a word from your end may lead to a disaster. This also involves telling him about the safety measures at home or at school. Your instruction to him should be very clear.