Encourage your baby's newfound crawling or even walking ability by putting favorite toys a distance away and asking your little one to go get them. Your baby will also enjoy arranging and rearranging items, as with stacking blocks or plastic rings. Remember that whatever game you're playing, a baby that's smiling, laughing or watching intently is engaged. If your little one starts to fuss, looks away, or cries, it may be time to switch up the activity to something that's more fun for everyone!