When our small children make an effort to pitch in we put on our talking-to-little-kid-voices and ask, "Are you being a big helper?" The help usually comes by way of emptying drawers, flinging laundry around the room, mixing up shoes, and doing other very nonhelpful sorts of things.
A few days ago I asked two of my teenage boys to move the furniture out of a bedroom so that I could paint.
When you move a dresser to a new location wouldn't you just naturally figure out that it will need to be used? Especially the dresser for a two-and-a-half year old who sometimes requires several clothing changes in a day.
This is what I got from my "big helpers".