These are a few things you will need to grow a boy...
2.) Superhero knowledge
3.) Stain remover
7.) Cars, trucks, airplanes, trains, boats
11.) Soap...lots and lots of soap
15.) Root beer floats
17.) A huge imagination to keep up with their imagination
18.) Glue, in a it's forms, super, wood, Elmer's, for all things broken
19.) A low gag reflex (boys are gross)
20.) Lots and lots of love, hugs and kisses
That's pretty much it. And if I forgot to mention it before, patience.