At bedtime, when I was tucking Henry in:
"Mom, turn on my light so you can look at my [lego] ship."
"That's awesome!"
"Do you like it?"
"I love it!"
"Mom, do you just say you like my things because you're trying to make me happy?"
(Considering) "Well, I am biased. Because I'm your mother, I think pretty much everything you make is great. But I could try to give you a more objective opinion, if you want."
"Yes, that's what I want. I want you to tell me which ones are really good, and which ones are not. In the morning, here's what I'm going to do. I'm going to separate all my ships into the ones that are awesome, the ones that are medium, and the ones that are not good."
"That's a good idea. You can use your own judgment."
"But I want your opinion too, Mom. And if we disagree about what category a ship should be in, I'll break it in half and put half of it in each category."