This will help to distract him, so that walking will become more natural. He will also try walking backwards. Get a large ball and roll it to him. Try to get him to roll it back. Later, try it with a small ball.
Stairs frighten many parents.
So, you might as well teach him the right way to go down them. When your child is ready to go down the stairs, teach him to do it on his stomach, feet first. This may keep him from the temptation to stand up and tumble down headfirst. He should also be drinking from the cup. You may switch him from formula or breast milk to whole milk now.