Your baby is developing new skills every day and building on the ones she's got. By now you may be able to tell from her expression when she is excited, unhappy, pleased or surprised. When you talk to your baby, she may move her arms and legs and make little noises back to you. Your baby may hold objects for a few moments, but without looking to see what's in her hands. She may swipe at things with her fists, too. Your baby will love batting at a balloon or a ball of wool, but you'll need to watch her carefully to make sure she's safe.