Your baby can learn sign language!

Here's how to say:

• "Please change my diaper": Turn beet red and make straining expression, then smile. 
• "I'd like something to eat, please": Cram fist in mouth and suck wildly. 
• "I'm tired": Make a series of weeping gestures before closing eyes and lolling head backward. 
• "Please pass me that thing up there that I can't reach": Point and grunt, then continue pointing and open mouth into screaming position. 
• "No thank you. I think I've had enough": Throw food or object to floor with exaggerated grin.