My 10.5 month old LOVES to drink water out of her straw cups. Sometimes she forgets that she has to keep her mouth closed when she drinks, though. I have to layer bibs on her so her outfit doesn't get soaking wet. She knows how to drink, she mostly does this when she's sipping for fun.

I dread the day we put milk in those straw cups and milk goes down the front of her instead of water!