Of course you don't sit them on some kind of 'watchtower' and wait for him to understand. You interact with them. You play with them, you cook with them, you build with them, you talk with them, and you read to them.

You never have to 'teach them things', they need to learn things from you. There's an enormous world of difference there.

Of course you should help him accomplish his objectives, and you should certainly do so with an eye toward the techniques or approaches he'll need to use to accomplish them on his own. There's a lot he doesn't know yet. But teaching technique and suggesting approaches is fundamentally different from attempting to impart characteristics and habits.