My son is a genius if you ask the right questions!

"Who's this?" (points to Lego Man)
"Man."
"What's on his head?" (points to blue hat)
"Hat."
"What color is his hat?"
"Boo."
"What color is the block?" (points to red block)
"Boo."
"What color is this block?" (points to yellow block)
"Boo."

Well, you were doing well for awhile there, kid. Your mama should have quit while she was ahead.