Hearing Impaired and Bubbles

Are all two-year-olds hearing impaired? Jonah seems to not hear anything that we say. I tried a new trick recently... I've starting asking him very quietly to turn on his ears. It is so sweet, although the effectiveness may be short-lived. He will stop his current activity, use his fingers to "click on" his ears, and he is magically able to hear what I am saying. Frequently, he will even respond in the way that I am hoping for. I guess he doesn't need hearing aids after all!

Ruby is making more vocalizations and has recently starting making a noise by blowing air through her lips. I don't know how to give words to the noise, but we've all made it before. Let your lips go loose and flop around a bit. The cute thing abour Ruby's "blpppt" is that she blows bubbles at the same time. She thinks that she is pretty fancy and her talking typically produces a bunch of smiles to show us how smart she is! What a lovely young lady.