Tonight while I was reading to Will and he was drinking his milk, he got so excited to tell me something that he spit milk everywhere. So, I got out a burp cloth to clean things up. Since we haven't used burp cloths in quite a while, Will's first question was "What's this?" I explained to him that these were used for babies because they sometimes spit out their milk because they were too little to know that they needed to swallow it.
At this point, Will leans over my belly and starts rubbing it gently. He looks directly at my belly and says "Baby, swallow da milk. Baby, no spit out da milk." And just for good measure (and a complete non sequitur), he adds, "Baby, I swing on the playground."
Good thing she's got a big brother to teach her everything she needs to know.