Peek-A-Boo
At this age, babies start to become aware that although you may be hiding behind something you are still there and will re-appear. Your 6-month-old baby is very responsive and will smile and giggle as you pretend to hide from him. He will most likely enjoy the anticipation of your reappearance and the element of surprise. He will also begin to learn how to uncover himself if you hide him under a blanket. Hide his toes and ask him where they have gone. If you tickle them through the blanket, it will help him learn that, although he can't see them, his toes are still there, too.
Songs and Rhymes
Sharing rhymes and songs with your 6-month-old baby is not only an enjoyable pastime for both of you, but is important for her development. Talking and singing to your baby helps her understanding of language develop and will aid her progress once she begins to talk. Repeat play rhymes like "This little piggy" and "Round and round the garden" to her often. She will learn to anticipate the tickle that comes at the end and enjoy the repetition. She will love sitting on your knee to be bounced along to the tune and may also enjoy holding a rattle so she can join in making sounds.
Stacking Toys
Brightly-colored stacking toys like rings and cups are suitable games for 6-month-old babies. Your baby will enjoy placing a ring on and off the pole. Let him develop at his own pace -- it will be a while before he can stack all of the rings or place any of them in order. Use stacking games to introduce words like "on," "off," "big" and "small, as well as concepts like color.
Pushing and Rolling Toys
Toys that can be pushed or rolled along the floor are good for encouraging your baby to develop her gross motor skills as she moves toward crawling. Some toys make sounds as they move, which adds to the excitement. She will enjoy reaching and eventually chasing after toys as you roll them across the floor away from her. Make it a game you enjoy together and praise her efforts.