Your baby can wave bye-bye, clap his hands and point to things he wants. Separation anxiety is common because he understands object permanence: You (or an object) still exist even when out of his sight, Amzel explains. He also may display a fear of strangers.
By 8 months, he can use his hands separately and pick up objects with his thumb and index finger, which means he can feed himself. He also may be crawling. But many babies, especially those who sleep on their backs, don’t crawl until 9 or 10 months, and some go straight from sitting to walking without crawling.
Need ideas for reading and playing with your baby? Here are our favorite recent releases in books and CDs for babies.