Going Native

I'm starting to fear all my time with the parents is having an effect on me. I know, how could someone like me ever be influenced by the likes of them? Still I wonder...

Sometimes I swear they can communicate. Mostly they just babble after their normal fashion, but there are moments when one of them will make noises and the other will perform an action, or one parent will point at something and make the same noise over and over. Odder still, they make those same noises later and act as if I should understand. Worse than that, sometimes I almost think I can. It's as if they're trying to talk. Am I sinking to their level?