Become as little children

My husband and I were put into nursery where we spend two hours every Sunday with a plethora of extremely cute and energized kids.  As I reflect on my time there, I think of Matt. 18: 2 that says, "And said, Verily I say unto you, Except ye be converted, and become as little children, ye shall not enter into the kingdom of heaven."  What about these kids to we want to emulate?  I know the characteristics I want to emulate: taking naps, having snack time, and coloring pictures that go along with the lesson. But, what characteristics do we NEED to get into heaven?  I don't think (sadly) that it's having daily naps.  I think the biggest thing that I noticed is that they are teachable.  They are willing to look up to the authority (in their case it would be an adult, but for us it would be Heavenly Father).  Often before doing something new, or something they think is bad, they will look to an adult for assurance that it is something that is okay to do.  How often do we turn to our loving Heavenly Father to double check something is okay? What else do you guys think we can do to be like little children?